./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a881d8f253e5b9c1e6ce343a427660e9baa2042ae2167d7e8c83968bc37d5f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:51:59,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:51:59,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:51:59,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:51:59,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:51:59,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:51:59,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:51:59,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:51:59,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:51:59,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:51:59,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:51:59,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:51:59,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:51:59,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:51:59,623 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:51:59,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:51:59,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:51:59,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:51:59,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:51:59,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:51:59,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:51:59,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:51:59,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:51:59,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:51:59,625 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:51:59,625 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:51:59,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:51:59,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:51:59,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:51:59,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:51:59,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:51:59,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:51:59,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:51:59,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:51:59,627 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a881d8f253e5b9c1e6ce343a427660e9baa2042ae2167d7e8c83968bc37d5f1 [2024-11-13 14:52:00,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:52:00,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:52:00,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:52:00,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:52:00,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:52:00,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i Unable to find full path for "g++" [2024-11-13 14:52:02,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:02,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:02,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i [2024-11-13 14:52:02,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/595ae0cb1/fa783ca4ee8e48949afdcd98aef0f389/FLAGdd842ac4b [2024-11-13 14:52:02,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/595ae0cb1/fa783ca4ee8e48949afdcd98aef0f389 [2024-11-13 14:52:02,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:02,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:02,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:02,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:02,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:02,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:02" (1/1) ... [2024-11-13 14:52:02,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291b03cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:02, skipping insertion in model container [2024-11-13 14:52:02,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:02" (1/1) ... [2024-11-13 14:52:02,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:02,942 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i[916,929] [2024-11-13 14:52:03,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:03,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:03,055 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i[916,929] [2024-11-13 14:52:03,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:03,109 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:03,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03 WrapperNode [2024-11-13 14:52:03,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:03,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:03,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:03,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:03,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,176 INFO L138 Inliner]: procedures = 29, calls = 203, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 689 [2024-11-13 14:52:03,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:03,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:03,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:03,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:03,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,216 INFO L175 MemorySlicer]: Split 166 memory accesses to 13 slices as follows [2, 9, 10, 8, 20, 30, 34, 9, 10, 7, 12, 8, 7]. 20 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2]. [2024-11-13 14:52:03,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:03,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:03,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:03,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:03,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:03,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:03,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:03,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-13 14:52:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:52:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-13 14:52:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-13 14:52:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-13 14:52:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-13 14:52:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-13 14:52:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 14:52:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-13 14:52:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-13 14:52:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-13 14:52:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-13 14:52:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-13 14:52:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-13 14:52:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-13 14:52:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-13 14:52:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-13 14:52:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:52:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:52:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:52:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:52:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:52:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 14:52:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 14:52:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:03,650 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:03,652 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:04,716 INFO L? ?]: Removed 216 outVars from TransFormulas that were not future-live. [2024-11-13 14:52:04,716 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:04,734 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:04,734 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:52:04,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04 BoogieIcfgContainer [2024-11-13 14:52:04,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:04,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:04,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:04,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:04,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:02" (1/3) ... [2024-11-13 14:52:04,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d22e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:04, skipping insertion in model container [2024-11-13 14:52:04,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (2/3) ... [2024-11-13 14:52:04,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d22e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:04, skipping insertion in model container [2024-11-13 14:52:04,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04" (3/3) ... [2024-11-13 14:52:04,749 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-49.i [2024-11-13 14:52:04,767 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:04,769 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-49.i that has 2 procedures, 136 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:52:04,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:04,859 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3419bff5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:04,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:52:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 120 states have internal predecessors, (175), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:52:04,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:04,880 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:04,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:04,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1628960669, now seen corresponding path program 1 times [2024-11-13 14:52:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:04,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831717406] [2024-11-13 14:52:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:04,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:05,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:05,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831717406] [2024-11-13 14:52:05,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831717406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:05,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:05,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564340629] [2024-11-13 14:52:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:05,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:52:05,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:52:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:05,412 INFO L87 Difference]: Start difference. First operand has 136 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 120 states have internal predecessors, (175), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:05,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:05,447 INFO L93 Difference]: Finished difference Result 265 states and 414 transitions. [2024-11-13 14:52:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:52:05,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-13 14:52:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:05,456 INFO L225 Difference]: With dead ends: 265 [2024-11-13 14:52:05,457 INFO L226 Difference]: Without dead ends: 132 [2024-11-13 14:52:05,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:05,465 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:05,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-13 14:52:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-13 14:52:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.4482758620689655) internal successors, (168), 116 states have internal predecessors, (168), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 196 transitions. [2024-11-13 14:52:05,509 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 196 transitions. Word has length 117 [2024-11-13 14:52:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:05,509 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 196 transitions. [2024-11-13 14:52:05,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 196 transitions. [2024-11-13 14:52:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:52:05,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:05,515 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:05,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:52:05,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:05,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash -878785525, now seen corresponding path program 1 times [2024-11-13 14:52:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573216818] [2024-11-13 14:52:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:05,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:05,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:05,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573216818] [2024-11-13 14:52:05,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573216818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:05,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:05,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:52:05,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434331021] [2024-11-13 14:52:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:05,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:52:05,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:52:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:05,993 INFO L87 Difference]: Start difference. First operand 132 states and 196 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:06,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:06,070 INFO L93 Difference]: Finished difference Result 263 states and 392 transitions. [2024-11-13 14:52:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:52:06,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-13 14:52:06,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:06,072 INFO L225 Difference]: With dead ends: 263 [2024-11-13 14:52:06,072 INFO L226 Difference]: Without dead ends: 134 [2024-11-13 14:52:06,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:06,074 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:06,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-13 14:52:06,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-13 14:52:06,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 1.4406779661016949) internal successors, (170), 118 states have internal predecessors, (170), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 198 transitions. [2024-11-13 14:52:06,088 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 198 transitions. Word has length 117 [2024-11-13 14:52:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:06,090 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 198 transitions. [2024-11-13 14:52:06,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 198 transitions. [2024-11-13 14:52:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:52:06,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:06,093 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:06,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:52:06,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:06,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1154608521, now seen corresponding path program 1 times [2024-11-13 14:52:06,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:06,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319242707] [2024-11-13 14:52:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:06,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:07,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:07,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319242707] [2024-11-13 14:52:07,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319242707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:07,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:07,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:07,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176133041] [2024-11-13 14:52:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:07,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:07,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:07,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:07,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:07,165 INFO L87 Difference]: Start difference. First operand 134 states and 198 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:07,358 INFO L93 Difference]: Finished difference Result 398 states and 591 transitions. [2024-11-13 14:52:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-13 14:52:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:07,362 INFO L225 Difference]: With dead ends: 398 [2024-11-13 14:52:07,365 INFO L226 Difference]: Without dead ends: 267 [2024-11-13 14:52:07,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:52:07,370 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 190 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:07,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1094 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:52:07,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-13 14:52:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 138. [2024-11-13 14:52:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.4344262295081966) internal successors, (175), 122 states have internal predecessors, (175), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 203 transitions. [2024-11-13 14:52:07,409 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 203 transitions. Word has length 117 [2024-11-13 14:52:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:07,410 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 203 transitions. [2024-11-13 14:52:07,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 203 transitions. [2024-11-13 14:52:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:07,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:07,415 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:07,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:52:07,415 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:07,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2145898812, now seen corresponding path program 1 times [2024-11-13 14:52:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:07,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702001152] [2024-11-13 14:52:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:07,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702001152] [2024-11-13 14:52:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702001152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:07,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389783417] [2024-11-13 14:52:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:07,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:07,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:07,808 INFO L87 Difference]: Start difference. First operand 138 states and 203 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:07,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:07,931 INFO L93 Difference]: Finished difference Result 394 states and 582 transitions. [2024-11-13 14:52:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:07,934 INFO L225 Difference]: With dead ends: 394 [2024-11-13 14:52:07,934 INFO L226 Difference]: Without dead ends: 259 [2024-11-13 14:52:07,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:52:07,938 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 159 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:07,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 868 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:52:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-13 14:52:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 256. [2024-11-13 14:52:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 231 states have (on average 1.4502164502164503) internal successors, (335), 232 states have internal predecessors, (335), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 379 transitions. [2024-11-13 14:52:07,973 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 379 transitions. Word has length 119 [2024-11-13 14:52:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:07,975 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 379 transitions. [2024-11-13 14:52:07,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:07,976 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 379 transitions. [2024-11-13 14:52:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:07,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:07,979 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:07,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:52:07,980 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:07,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:07,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1756041474, now seen corresponding path program 1 times [2024-11-13 14:52:07,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:07,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465653363] [2024-11-13 14:52:07,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:07,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:08,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:08,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465653363] [2024-11-13 14:52:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465653363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:08,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:52:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840969289] [2024-11-13 14:52:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:08,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:52:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:52:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:52:08,839 INFO L87 Difference]: Start difference. First operand 256 states and 379 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 14:52:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:09,316 INFO L93 Difference]: Finished difference Result 519 states and 764 transitions. [2024-11-13 14:52:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:52:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-13 14:52:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:09,321 INFO L225 Difference]: With dead ends: 519 [2024-11-13 14:52:09,321 INFO L226 Difference]: Without dead ends: 266 [2024-11-13 14:52:09,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:52:09,324 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 310 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:09,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 815 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:09,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-13 14:52:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2024-11-13 14:52:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 234 states have (on average 1.435897435897436) internal successors, (336), 235 states have internal predecessors, (336), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 380 transitions. [2024-11-13 14:52:09,372 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 380 transitions. Word has length 119 [2024-11-13 14:52:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:09,373 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 380 transitions. [2024-11-13 14:52:09,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 14:52:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 380 transitions. [2024-11-13 14:52:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:09,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:09,375 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:09,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:52:09,375 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:09,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:09,376 INFO L85 PathProgramCache]: Analyzing trace with hash -743274342, now seen corresponding path program 1 times [2024-11-13 14:52:09,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:09,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539711809] [2024-11-13 14:52:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:11,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539711809] [2024-11-13 14:52:11,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539711809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:11,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:11,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:52:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36121744] [2024-11-13 14:52:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:11,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:52:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:52:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:52:11,854 INFO L87 Difference]: Start difference. First operand 260 states and 380 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:13,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:13,382 INFO L93 Difference]: Finished difference Result 745 states and 1089 transitions. [2024-11-13 14:52:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:52:13,382 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-13 14:52:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:13,385 INFO L225 Difference]: With dead ends: 745 [2024-11-13 14:52:13,385 INFO L226 Difference]: Without dead ends: 488 [2024-11-13 14:52:13,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:52:13,390 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1224 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:13,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 2445 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:52:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-13 14:52:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 316. [2024-11-13 14:52:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 290 states have (on average 1.4551724137931035) internal successors, (422), 291 states have internal predecessors, (422), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 466 transitions. [2024-11-13 14:52:13,424 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 466 transitions. Word has length 121 [2024-11-13 14:52:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:13,425 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 466 transitions. [2024-11-13 14:52:13,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 466 transitions. [2024-11-13 14:52:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:13,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:13,427 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:13,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:52:13,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:13,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1885131787, now seen corresponding path program 1 times [2024-11-13 14:52:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582337014] [2024-11-13 14:52:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:13,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:52:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:52:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:52:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:52:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:52:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:52:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:52:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:52:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:52:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:52:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:14,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582337014] [2024-11-13 14:52:14,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582337014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165494035] [2024-11-13 14:52:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:14,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:14,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:14,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:52:14,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:52:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:14,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:52:14,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:14,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:52:15,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:52:15,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:52:15,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:52:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:52:15,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:15,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-11-13 14:52:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165494035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:15,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:52:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 14 [2024-11-13 14:52:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796739175] [2024-11-13 14:52:15,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:15,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:52:15,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:15,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:52:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:52:15,690 INFO L87 Difference]: Start difference. First operand 316 states and 466 transitions. Second operand has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (29), 4 states have call predecessors, (29), 6 states have call successors, (29) [2024-11-13 14:52:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:16,601 INFO L93 Difference]: Finished difference Result 914 states and 1334 transitions. [2024-11-13 14:52:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:52:16,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (29), 4 states have call predecessors, (29), 6 states have call successors, (29) Word has length 121 [2024-11-13 14:52:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:16,605 INFO L225 Difference]: With dead ends: 914 [2024-11-13 14:52:16,605 INFO L226 Difference]: Without dead ends: 601 [2024-11-13 14:52:16,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 262 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=288, Invalid=834, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:52:16,607 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 925 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:16,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1211 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:52:16,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-13 14:52:16,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 328. [2024-11-13 14:52:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 301 states have (on average 1.4485049833887043) internal successors, (436), 302 states have internal predecessors, (436), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 480 transitions. [2024-11-13 14:52:16,644 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 480 transitions. Word has length 121 [2024-11-13 14:52:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:16,644 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 480 transitions. [2024-11-13 14:52:16,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (29), 4 states have call predecessors, (29), 6 states have call successors, (29) [2024-11-13 14:52:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 480 transitions. [2024-11-13 14:52:16,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:16,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:16,647 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:16,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:52:16,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 14:52:16,848 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:16,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:16,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1823029495, now seen corresponding path program 1 times [2024-11-13 14:52:16,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:16,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183367961] [2024-11-13 14:52:16,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:16,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:16,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:52:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:17,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:52:17,130 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:52:17,131 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:52:17,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:52:17,136 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:17,352 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:52:17,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:52:17 BoogieIcfgContainer [2024-11-13 14:52:17,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:52:17,356 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:52:17,356 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:52:17,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:52:17,357 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04" (3/4) ... [2024-11-13 14:52:17,359 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:52:17,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:52:17,361 INFO L158 Benchmark]: Toolchain (without parser) took 14643.18ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 93.6MB in the beginning and 240.9MB in the end (delta: -147.3MB). Peak memory consumption was 165.7MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,361 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:17,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.92ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 77.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.58ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 73.3MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:17,362 INFO L158 Benchmark]: Boogie Preprocessor took 92.77ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 67.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,362 INFO L158 Benchmark]: RCFGBuilder took 1464.11ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 68.9MB in the end (delta: -1.6MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,363 INFO L158 Benchmark]: TraceAbstraction took 12616.43ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 68.3MB in the beginning and 241.0MB in the end (delta: -172.6MB). Peak memory consumption was 133.3MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,363 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 427.8MB. Free memory was 241.0MB in the beginning and 240.9MB in the end (delta: 56.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:17,367 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.92ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 77.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.58ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 73.3MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 92.77ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 67.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1464.11ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 68.9MB in the end (delta: -1.6MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12616.43ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 68.3MB in the beginning and 241.0MB in the end (delta: -172.6MB). Peak memory consumption was 133.3MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 427.8MB. Free memory was 241.0MB in the beginning and 240.9MB in the end (delta: 56.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 80. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L22] unsigned short int var_1_1 = 4; [L23] unsigned short int* var_1_1_Pointer = &(var_1_1); [L24] float var_1_2 = 1000000000000000.4; [L24] float var_1_2 = 1000000000000000.4; [L25] float* var_1_2_Pointer = &(var_1_2); [L26] float var_1_3 = 1000.2; [L26] float var_1_3 = 1000.2; [L27] float* var_1_3_Pointer = &(var_1_3); [L28] unsigned short int var_1_4 = 256; [L28] unsigned short int var_1_4 = 256; [L29] unsigned short int* var_1_4_Pointer = &(var_1_4); [L30] unsigned short int var_1_5 = 4; [L30] unsigned short int var_1_5 = 4; [L31] unsigned short int* var_1_5_Pointer = &(var_1_5); [L32] unsigned short int var_1_6 = 10; [L32] unsigned short int var_1_6 = 10; [L33] unsigned short int* var_1_6_Pointer = &(var_1_6); [L34] signed short int var_1_8 = 128; [L34] signed short int var_1_8 = 128; [L35] signed short int* var_1_8_Pointer = &(var_1_8); [L36] signed short int var_1_9 = -2; [L36] signed short int var_1_9 = -2; [L37] signed short int* var_1_9_Pointer = &(var_1_9); [L38] unsigned char var_1_10 = 0; [L38] unsigned char var_1_10 = 0; [L39] unsigned char* var_1_10_Pointer = &(var_1_10); [L40] unsigned char var_1_11 = 0; [L40] unsigned char var_1_11 = 0; [L41] unsigned char* var_1_11_Pointer = &(var_1_11); [L42] unsigned char var_1_12 = 0; [L42] unsigned char var_1_12 = 0; [L43] unsigned char* var_1_12_Pointer = &(var_1_12); [L44] unsigned char var_1_13 = 1; [L44] unsigned char var_1_13 = 1; [L45] unsigned char* var_1_13_Pointer = &(var_1_13); VAL [isInitial=0, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] FCALL updateLastVariables() [L111] CALL updateVariables() [L77] var_1_2 = __VERIFIER_nondet_float() [L78] EXPR \read(var_1_2) [L78] EXPR var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L78] EXPR var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F [L78] EXPR \read(var_1_2) [L78] EXPR var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L78] EXPR (var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L78] EXPR (var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L78] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L78] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L79] var_1_3 = __VERIFIER_nondet_float() [L80] EXPR \read(var_1_3) [L80] EXPR var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L80] EXPR var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F [L80] EXPR \read(var_1_3) [L80] EXPR var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L80] EXPR (var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L80] EXPR (var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L80] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L80] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L81] var_1_4 = __VERIFIER_nondet_ushort() [L82] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L83] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L83] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L83] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L84] var_1_5 = __VERIFIER_nondet_ushort() [L85] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L86] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L86] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L86] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L87] var_1_6 = __VERIFIER_nondet_ushort() [L88] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L88] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L88] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L90] var_1_9 = __VERIFIER_nondet_short() [L91] EXPR \read(var_1_9) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L91] CALL assume_abort_if_not(var_1_9 >= -32766) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L91] RET assume_abort_if_not(var_1_9 >= -32766) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] EXPR \read(var_1_9) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L93] var_1_11 = __VERIFIER_nondet_uchar() [L94] EXPR \read(var_1_11) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L94] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L94] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] EXPR \read(var_1_11) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L96] var_1_12 = __VERIFIER_nondet_uchar() [L97] EXPR \read(var_1_12) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L97] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L97] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L98] EXPR \read(var_1_12) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L98] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L98] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L111] RET updateVariables() [L112] CALL step() [L49] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L49] EXPR (((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))) [L49] EXPR \read(*var_1_9_Pointer) [L49] EXPR (((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L49] (*(var_1_8_Pointer)) = (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) [L50] EXPR \read(*var_1_4_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L50] EXPR 50 >> (*(var_1_4_Pointer)) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L50] EXPR \read(*var_1_8_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L50] COND FALSE !((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) [L53] EXPR \read(*var_1_11_Pointer) [L53] (*(var_1_10_Pointer)) = (! (*(var_1_11_Pointer))) [L55] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L55] COND TRUE ! (*(var_1_12_Pointer)) [L56] EXPR \read(*var_1_4_Pointer) [L56] EXPR \read(*var_1_6_Pointer) [L56] EXPR \read(*var_1_8_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L56] EXPR (((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer))) [L56] EXPR \read(*var_1_8_Pointer) [L56] EXPR (((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L56] COND FALSE !((*(var_1_4_Pointer)) >= (((((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer)))))) [L59] EXPR \read(*var_1_11_Pointer) [L59] (*(var_1_13_Pointer)) = (*(var_1_11_Pointer)) [L62] EXPR \read(*var_1_2_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L62] COND TRUE (*(var_1_2_Pointer)) >= 64.5f [L63] EXPR \read(*var_1_2_Pointer) [L63] EXPR \read(*var_1_3_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L63] COND FALSE !((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) [L66] EXPR \read(*var_1_13_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L66] COND FALSE !((*(var_1_13_Pointer))) [L69] EXPR \read(*var_1_6_Pointer) [L69] (*(var_1_1_Pointer)) = (*(var_1_6_Pointer)) [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR \read(*var_1_2_Pointer) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR ((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50)) [L103] EXPR \read(*var_1_1_Pointer) [L103] EXPR ((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50)) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR (((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR (((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR ((((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer)))))))) && (((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) ((! (! (*(var_1_11_Pointer)))) || (*(var_1_12_Pointer))))) : ((*(var_1_10_Pointer)) == ((unsigned char) (! (*(var_1_11_Pointer)))))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR ((((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer)))))))) && (((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) ((! (! (*(var_1_11_Pointer)))) || (*(var_1_12_Pointer))))) : ((*(var_1_10_Pointer)) == ((unsigned char) (! (*(var_1_11_Pointer)))))) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR (((((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer)))))))) && (((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) ((! (! (*(var_1_11_Pointer)))) || (*(var_1_12_Pointer))))) : ((*(var_1_10_Pointer)) == ((unsigned char) (! (*(var_1_11_Pointer))))))) && ((! (*(var_1_12_Pointer))) ? (((*(var_1_4_Pointer)) >= (((((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_13_Pointer)) == ((unsigned char) ((*(var_1_10_Pointer)) && (*(var_1_11_Pointer))))) : ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_11_Pointer))))) : 1) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] EXPR (((((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer)))))))) && (((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) ((! (! (*(var_1_11_Pointer)))) || (*(var_1_12_Pointer))))) : ((*(var_1_10_Pointer)) == ((unsigned char) (! (*(var_1_11_Pointer))))))) && ((! (*(var_1_12_Pointer))) ? (((*(var_1_4_Pointer)) >= (((((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_13_Pointer)) == ((unsigned char) ((*(var_1_10_Pointer)) && (*(var_1_11_Pointer))))) : ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_11_Pointer))))) : 1) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103-L104] return (((((*(var_1_2_Pointer)) >= 64.5f) ? (((*(var_1_2_Pointer)) >= (*(var_1_3_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((((((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) < 0 ) ? -(((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))) : (((((*(var_1_4_Pointer))) > ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer))))))) ? ((*(var_1_4_Pointer))) : ((((((*(var_1_5_Pointer))) > ((*(var_1_6_Pointer)))) ? ((*(var_1_5_Pointer))) : ((*(var_1_6_Pointer)))))))))))) : ((*(var_1_13_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) : ((*(var_1_1_Pointer)) == ((unsigned short int) 50))) && ((*(var_1_8_Pointer)) == ((signed short int) (((((*(var_1_9_Pointer))) < 0 ) ? -((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer)))))))) && (((50 >> (*(var_1_4_Pointer))) <= (*(var_1_8_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) ((! (! (*(var_1_11_Pointer)))) || (*(var_1_12_Pointer))))) : ((*(var_1_10_Pointer)) == ((unsigned char) (! (*(var_1_11_Pointer))))))) && ((! (*(var_1_12_Pointer))) ? (((*(var_1_4_Pointer)) >= (((((*(var_1_6_Pointer))) < ((*(var_1_8_Pointer)))) ? ((*(var_1_6_Pointer))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_13_Pointer)) == ((unsigned char) ((*(var_1_10_Pointer)) && (*(var_1_11_Pointer))))) : ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_11_Pointer))))) : 1) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L19] reach_error() VAL [isInitial=1, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2809 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2808 mSDsluCounter, 7200 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5649 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1346 IncrementalHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 1551 mSDtfsCounter, 1346 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 550 GetRequests, 458 SyntacticMatches, 5 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=7, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 583 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1073 NumberOfCodeBlocks, 1073 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1064 ConstructedInterpolants, 0 QuantifiedInterpolants, 3704 SizeOfPredicates, 10 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3126/3276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:52:17,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a881d8f253e5b9c1e6ce343a427660e9baa2042ae2167d7e8c83968bc37d5f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:52:20,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:52:20,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:52:20,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:52:20,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:52:20,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:52:20,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:52:20,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:52:20,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:52:20,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:52:20,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:52:20,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:52:20,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:52:20,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:52:20,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:52:20,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:52:20,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:52:20,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:52:20,319 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:52:20,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:52:20,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:52:20,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:52:20,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:52:20,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:52:20,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:20,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:52:20,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:52:20,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:52:20,323 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a881d8f253e5b9c1e6ce343a427660e9baa2042ae2167d7e8c83968bc37d5f1 [2024-11-13 14:52:20,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:52:20,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:52:20,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:52:20,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:52:20,665 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:52:20,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i Unable to find full path for "g++" [2024-11-13 14:52:22,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:23,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:23,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i [2024-11-13 14:52:23,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/d4e5139e1/2789b03d3411411a80a7eb6e9b1fcf11/FLAGf82c7becb [2024-11-13 14:52:23,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/data/d4e5139e1/2789b03d3411411a80a7eb6e9b1fcf11 [2024-11-13 14:52:23,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:23,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:23,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:23,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:23,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:23,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fa94e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23, skipping insertion in model container [2024-11-13 14:52:23,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:23,293 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i[916,929] [2024-11-13 14:52:23,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:23,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:23,432 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-49.i[916,929] [2024-11-13 14:52:23,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:23,489 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:23,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23 WrapperNode [2024-11-13 14:52:23,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:23,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:23,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:23,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:23,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,550 INFO L138 Inliner]: procedures = 33, calls = 203, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 674 [2024-11-13 14:52:23,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:23,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:23,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:23,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:23,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,604 INFO L175 MemorySlicer]: Split 166 memory accesses to 13 slices as follows [2, 9, 10, 8, 20, 30, 34, 9, 10, 7, 12, 8, 7]. 20 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2]. [2024-11-13 14:52:23,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:23,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:23,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:23,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:23,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:23,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:23,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 14:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 14:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 14:52:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-13 14:52:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-13 14:52:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-13 14:52:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-13 14:52:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-13 14:52:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#11 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#12 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-13 14:52:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-13 14:52:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-13 14:52:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-13 14:52:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-13 14:52:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-13 14:52:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-13 14:52:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#11 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#12 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-13 14:52:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-13 14:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-13 14:52:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:52:23,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:23,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-13 14:52:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-13 14:52:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-13 14:52:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#11 [2024-11-13 14:52:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#12 [2024-11-13 14:52:24,037 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:24,039 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:25,079 INFO L? ?]: Removed 212 outVars from TransFormulas that were not future-live. [2024-11-13 14:52:25,079 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:25,101 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:25,101 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:52:25,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:25 BoogieIcfgContainer [2024-11-13 14:52:25,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:25,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:25,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:25,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:25,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:23" (1/3) ... [2024-11-13 14:52:25,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146b1cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:25, skipping insertion in model container [2024-11-13 14:52:25,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (2/3) ... [2024-11-13 14:52:25,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146b1cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:25, skipping insertion in model container [2024-11-13 14:52:25,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:25" (3/3) ... [2024-11-13 14:52:25,115 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-49.i [2024-11-13 14:52:25,134 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:25,136 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-49.i that has 2 procedures, 130 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:52:25,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:25,246 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f25290a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:25,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:52:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 114 states have internal predecessors, (167), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:25,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:52:25,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:25,272 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:25,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:25,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:25,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1635791032, now seen corresponding path program 1 times [2024-11-13 14:52:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666728334] [2024-11-13 14:52:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:25,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:25,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:25,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:25,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 14:52:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:52:25,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-13 14:52:25,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:25,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666728334] [2024-11-13 14:52:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666728334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:25,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:25,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:25,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401261778] [2024-11-13 14:52:25,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:25,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:52:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:52:26,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:26,014 INFO L87 Difference]: Start difference. First operand has 130 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 114 states have internal predecessors, (167), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:26,065 INFO L93 Difference]: Finished difference Result 253 states and 398 transitions. [2024-11-13 14:52:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:52:26,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-13 14:52:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:26,077 INFO L225 Difference]: With dead ends: 253 [2024-11-13 14:52:26,078 INFO L226 Difference]: Without dead ends: 126 [2024-11-13 14:52:26,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:26,088 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:26,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:26,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-13 14:52:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-13 14:52:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.4545454545454546) internal successors, (160), 110 states have internal predecessors, (160), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:26,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 188 transitions. [2024-11-13 14:52:26,145 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 188 transitions. Word has length 115 [2024-11-13 14:52:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:26,147 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 188 transitions. [2024-11-13 14:52:26,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 188 transitions. [2024-11-13 14:52:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:52:26,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:26,157 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:26,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 14:52:26,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:26,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:26,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash -656163232, now seen corresponding path program 1 times [2024-11-13 14:52:26,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352833502] [2024-11-13 14:52:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:26,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:26,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:26,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:26,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 14:52:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:26,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:52:26,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:52:26,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:26,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:26,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352833502] [2024-11-13 14:52:26,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352833502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:26,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:26,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:52:26,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638950500] [2024-11-13 14:52:26,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:26,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:52:26,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:26,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:52:26,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:26,930 INFO L87 Difference]: Start difference. First operand 126 states and 188 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:27,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:27,020 INFO L93 Difference]: Finished difference Result 251 states and 376 transitions. [2024-11-13 14:52:27,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:52:27,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-13 14:52:27,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:27,022 INFO L225 Difference]: With dead ends: 251 [2024-11-13 14:52:27,023 INFO L226 Difference]: Without dead ends: 128 [2024-11-13 14:52:27,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:27,024 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:27,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 547 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:52:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-13 14:52:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-13 14:52:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 112 states have (on average 1.4464285714285714) internal successors, (162), 112 states have internal predecessors, (162), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 190 transitions. [2024-11-13 14:52:27,048 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 190 transitions. Word has length 115 [2024-11-13 14:52:27,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:27,052 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 190 transitions. [2024-11-13 14:52:27,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 190 transitions. [2024-11-13 14:52:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:52:27,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:27,058 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:27,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:27,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:27,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:27,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 650979166, now seen corresponding path program 1 times [2024-11-13 14:52:27,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:27,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911818076] [2024-11-13 14:52:27,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:27,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:27,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:27,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:27,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 14:52:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:27,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:52:27,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:28,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:52:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:52:28,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:29,014 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:52:29,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:52:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:29,361 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911818076] [2024-11-13 14:52:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911818076] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:29,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:52:29,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-11-13 14:52:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523271078] [2024-11-13 14:52:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:29,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:52:29,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:52:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:52:29,363 INFO L87 Difference]: Start difference. First operand 128 states and 190 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:29,768 INFO L93 Difference]: Finished difference Result 259 states and 382 transitions. [2024-11-13 14:52:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:52:29,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-13 14:52:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:29,770 INFO L225 Difference]: With dead ends: 259 [2024-11-13 14:52:29,770 INFO L226 Difference]: Without dead ends: 134 [2024-11-13 14:52:29,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:52:29,772 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 294 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:29,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 358 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-13 14:52:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2024-11-13 14:52:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 115 states have (on average 1.4260869565217391) internal successors, (164), 115 states have internal predecessors, (164), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-11-13 14:52:29,803 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 115 [2024-11-13 14:52:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:29,804 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-11-13 14:52:29,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-11-13 14:52:29,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:52:29,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:29,807 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:29,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 14:52:30,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:30,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:30,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1474321160, now seen corresponding path program 1 times [2024-11-13 14:52:30,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:30,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362536373] [2024-11-13 14:52:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:30,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:30,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:30,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:30,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 14:52:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:30,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:52:30,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:30,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:52:30,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 14:52:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:30,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:30,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362536373] [2024-11-13 14:52:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362536373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:30,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:30,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303411693] [2024-11-13 14:52:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:30,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:30,556 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:30,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:30,728 INFO L93 Difference]: Finished difference Result 392 states and 573 transitions. [2024-11-13 14:52:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:30,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-13 14:52:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:30,731 INFO L225 Difference]: With dead ends: 392 [2024-11-13 14:52:30,731 INFO L226 Difference]: Without dead ends: 263 [2024-11-13 14:52:30,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:52:30,735 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 181 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:30,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1043 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:52:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-13 14:52:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 136. [2024-11-13 14:52:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 119 states have (on average 1.4201680672268908) internal successors, (169), 119 states have internal predecessors, (169), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 197 transitions. [2024-11-13 14:52:30,764 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 197 transitions. Word has length 117 [2024-11-13 14:52:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:30,764 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 197 transitions. [2024-11-13 14:52:30,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 197 transitions. [2024-11-13 14:52:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:30,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:30,769 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:30,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 14:52:30,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:30,970 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:30,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash 671261555, now seen corresponding path program 1 times [2024-11-13 14:52:30,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:30,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100072898] [2024-11-13 14:52:30,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:30,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:30,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:30,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:30,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 14:52:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:31,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:52:31,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:31,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-13 14:52:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:33,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:33,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100072898] [2024-11-13 14:52:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100072898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:33,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586083559] [2024-11-13 14:52:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:33,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:33,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:33,249 INFO L87 Difference]: Start difference. First operand 136 states and 197 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:33,704 INFO L93 Difference]: Finished difference Result 384 states and 561 transitions. [2024-11-13 14:52:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:33,711 INFO L225 Difference]: With dead ends: 384 [2024-11-13 14:52:33,711 INFO L226 Difference]: Without dead ends: 251 [2024-11-13 14:52:33,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:52:33,716 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 150 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:33,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 832 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:52:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-13 14:52:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 248. [2024-11-13 14:52:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 222 states have (on average 1.4414414414414414) internal successors, (320), 223 states have internal predecessors, (320), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 364 transitions. [2024-11-13 14:52:33,751 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 364 transitions. Word has length 119 [2024-11-13 14:52:33,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:33,753 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 364 transitions. [2024-11-13 14:52:33,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:33,765 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 364 transitions. [2024-11-13 14:52:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:33,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:33,769 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:33,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 14:52:33,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:33,969 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:33,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash 278234545, now seen corresponding path program 1 times [2024-11-13 14:52:33,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:33,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987185998] [2024-11-13 14:52:33,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:33,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:33,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:33,973 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:33,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 14:52:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:34,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:52:34,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:34,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:52:35,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 14:52:35,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-13 14:52:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 14:52:35,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:35,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:35,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987185998] [2024-11-13 14:52:35,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987185998] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:35,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:52:35,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 16 [2024-11-13 14:52:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606155165] [2024-11-13 14:52:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:35,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:52:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:52:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:52:35,848 INFO L87 Difference]: Start difference. First operand 248 states and 364 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:36,487 INFO L93 Difference]: Finished difference Result 606 states and 891 transitions. [2024-11-13 14:52:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:52:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:36,500 INFO L225 Difference]: With dead ends: 606 [2024-11-13 14:52:36,501 INFO L226 Difference]: Without dead ends: 361 [2024-11-13 14:52:36,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:52:36,504 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 281 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:36,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1418 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:52:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-13 14:52:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 306. [2024-11-13 14:52:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 280 states have (on average 1.4607142857142856) internal successors, (409), 281 states have internal predecessors, (409), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 453 transitions. [2024-11-13 14:52:36,543 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 453 transitions. Word has length 119 [2024-11-13 14:52:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:36,544 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 453 transitions. [2024-11-13 14:52:36,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 453 transitions. [2024-11-13 14:52:36,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:36,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:36,546 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:36,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:36,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:36,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:36,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -863622900, now seen corresponding path program 1 times [2024-11-13 14:52:36,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:36,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469252554] [2024-11-13 14:52:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:36,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:36,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:36,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 14:52:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:37,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:52:37,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:37,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:52:37,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:52:37,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:52:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:52:37,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:38,217 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:52:38,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:52:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:38,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:38,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469252554] [2024-11-13 14:52:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469252554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:38,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:52:38,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-13 14:52:38,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152644508] [2024-11-13 14:52:38,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:38,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:52:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:52:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:52:38,483 INFO L87 Difference]: Start difference. First operand 306 states and 453 transitions. Second operand has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:40,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:40,243 INFO L93 Difference]: Finished difference Result 936 states and 1375 transitions. [2024-11-13 14:52:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:52:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 119 [2024-11-13 14:52:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:40,250 INFO L225 Difference]: With dead ends: 936 [2024-11-13 14:52:40,250 INFO L226 Difference]: Without dead ends: 633 [2024-11-13 14:52:40,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:52:40,252 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 641 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:40,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1302 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:52:40,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-13 14:52:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 322. [2024-11-13 14:52:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 295 states have (on average 1.4576271186440677) internal successors, (430), 296 states have internal predecessors, (430), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 14:52:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 474 transitions. [2024-11-13 14:52:40,299 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 474 transitions. Word has length 119 [2024-11-13 14:52:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:40,299 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 474 transitions. [2024-11-13 14:52:40,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 14 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 474 transitions. [2024-11-13 14:52:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:40,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:40,302 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:40,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:40,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:40,502 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:40,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1450428914, now seen corresponding path program 1 times [2024-11-13 14:52:40,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:40,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127525033] [2024-11-13 14:52:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:40,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:40,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:40,507 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:40,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 14:52:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:40,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:52:40,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:42,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:52:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:42,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:42,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127525033] [2024-11-13 14:52:42,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127525033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:42,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:42,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:52:42,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881779655] [2024-11-13 14:52:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:42,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:52:42,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:52:42,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:52:42,545 INFO L87 Difference]: Start difference. First operand 322 states and 474 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:43,750 INFO L93 Difference]: Finished difference Result 888 states and 1298 transitions. [2024-11-13 14:52:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:52:43,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:43,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:43,755 INFO L225 Difference]: With dead ends: 888 [2024-11-13 14:52:43,755 INFO L226 Difference]: Without dead ends: 569 [2024-11-13 14:52:43,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:52:43,756 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 390 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:43,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 875 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:52:43,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-13 14:52:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 433. [2024-11-13 14:52:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 380 states have (on average 1.4131578947368422) internal successors, (537), 382 states have internal predecessors, (537), 44 states have call successors, (44), 8 states have call predecessors, (44), 8 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 14:52:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 625 transitions. [2024-11-13 14:52:43,825 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 625 transitions. Word has length 119 [2024-11-13 14:52:43,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:43,825 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 625 transitions. [2024-11-13 14:52:43,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 625 transitions. [2024-11-13 14:52:43,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:43,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:43,828 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:43,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-13 14:52:44,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:44,029 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:44,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1818267407, now seen corresponding path program 1 times [2024-11-13 14:52:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:44,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005741865] [2024-11-13 14:52:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:44,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:44,032 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:44,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 14:52:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:44,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:52:44,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:44,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-13 14:52:45,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2024-11-13 14:52:45,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2024-11-13 14:52:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 14:52:45,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:45,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:45,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005741865] [2024-11-13 14:52:45,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005741865] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:45,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:52:45,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 20 [2024-11-13 14:52:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844216442] [2024-11-13 14:52:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:45,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:52:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:52:45,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:52:45,923 INFO L87 Difference]: Start difference. First operand 433 states and 625 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:46,921 INFO L93 Difference]: Finished difference Result 1164 states and 1685 transitions. [2024-11-13 14:52:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:52:46,923 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:46,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:46,928 INFO L225 Difference]: With dead ends: 1164 [2024-11-13 14:52:46,928 INFO L226 Difference]: Without dead ends: 734 [2024-11-13 14:52:46,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:52:46,933 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 709 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:46,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2353 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:52:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-13 14:52:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 561. [2024-11-13 14:52:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 508 states have (on average 1.4507874015748032) internal successors, (737), 510 states have internal predecessors, (737), 44 states have call successors, (44), 8 states have call predecessors, (44), 8 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 14:52:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 825 transitions. [2024-11-13 14:52:47,011 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 825 transitions. Word has length 119 [2024-11-13 14:52:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:47,012 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 825 transitions. [2024-11-13 14:52:47,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 825 transitions. [2024-11-13 14:52:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:47,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:47,016 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:47,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 14:52:47,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:47,220 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:47,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2083672879, now seen corresponding path program 1 times [2024-11-13 14:52:47,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:47,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354132303] [2024-11-13 14:52:47,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:47,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:47,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-13 14:52:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:47,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:52:47,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:47,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:52:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:47,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:47,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:47,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354132303] [2024-11-13 14:52:47,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354132303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:47,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:47,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:47,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469261281] [2024-11-13 14:52:47,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:47,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:47,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:47,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:47,632 INFO L87 Difference]: Start difference. First operand 561 states and 825 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:47,833 INFO L93 Difference]: Finished difference Result 1215 states and 1773 transitions. [2024-11-13 14:52:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:47,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:47,837 INFO L225 Difference]: With dead ends: 1215 [2024-11-13 14:52:47,837 INFO L226 Difference]: Without dead ends: 657 [2024-11-13 14:52:47,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:52:47,839 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 152 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:47,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 976 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:52:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-13 14:52:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 427. [2024-11-13 14:52:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 390 states have (on average 1.4435897435897436) internal successors, (563), 390 states have internal predecessors, (563), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 619 transitions. [2024-11-13 14:52:47,897 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 619 transitions. Word has length 119 [2024-11-13 14:52:47,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:47,897 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 619 transitions. [2024-11-13 14:52:47,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 619 transitions. [2024-11-13 14:52:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:47,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:47,900 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:47,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:48,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:48,102 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:48,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash 482555183, now seen corresponding path program 1 times [2024-11-13 14:52:48,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402035223] [2024-11-13 14:52:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:48,109 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:48,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-13 14:52:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:48,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:52:48,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:48,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-13 14:52:49,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-13 14:52:49,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2024-11-13 14:52:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 14:52:49,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:50,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:50,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402035223] [2024-11-13 14:52:50,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402035223] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:52:50,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 20 [2024-11-13 14:52:50,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396756954] [2024-11-13 14:52:50,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:50,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:52:50,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:50,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:52:50,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:52:50,012 INFO L87 Difference]: Start difference. First operand 427 states and 619 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:51,265 INFO L93 Difference]: Finished difference Result 1134 states and 1642 transitions. [2024-11-13 14:52:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:52:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:51,271 INFO L225 Difference]: With dead ends: 1134 [2024-11-13 14:52:51,272 INFO L226 Difference]: Without dead ends: 710 [2024-11-13 14:52:51,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:52:51,273 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 433 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:51,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 3452 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:52:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-13 14:52:51,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 429. [2024-11-13 14:52:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 392 states have (on average 1.4464285714285714) internal successors, (567), 392 states have internal predecessors, (567), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 623 transitions. [2024-11-13 14:52:51,328 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 623 transitions. Word has length 119 [2024-11-13 14:52:51,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:51,328 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 623 transitions. [2024-11-13 14:52:51,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:51,329 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 623 transitions. [2024-11-13 14:52:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:52:51,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:51,331 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:51,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:51,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:51,531 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 551457356, now seen corresponding path program 1 times [2024-11-13 14:52:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:51,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393406874] [2024-11-13 14:52:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:51,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:51,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:51,534 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:51,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-13 14:52:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:51,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:52:51,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:51,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:51,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393406874] [2024-11-13 14:52:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393406874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:51,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:52:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798399385] [2024-11-13 14:52:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:51,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:52:51,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:52:51,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:51,857 INFO L87 Difference]: Start difference. First operand 429 states and 623 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:51,909 INFO L93 Difference]: Finished difference Result 855 states and 1243 transitions. [2024-11-13 14:52:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:52:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-13 14:52:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:51,912 INFO L225 Difference]: With dead ends: 855 [2024-11-13 14:52:51,912 INFO L226 Difference]: Without dead ends: 429 [2024-11-13 14:52:51,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:52:51,914 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:51,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 548 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-13 14:52:51,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2024-11-13 14:52:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 392 states have (on average 1.4438775510204083) internal successors, (566), 392 states have internal predecessors, (566), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 622 transitions. [2024-11-13 14:52:51,952 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 622 transitions. Word has length 119 [2024-11-13 14:52:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:51,953 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 622 transitions. [2024-11-13 14:52:51,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 622 transitions. [2024-11-13 14:52:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:51,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:51,955 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:51,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-13 14:52:52,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:52,156 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:52,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1442109068, now seen corresponding path program 1 times [2024-11-13 14:52:52,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:52,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535653965] [2024-11-13 14:52:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:52,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:52,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:52,161 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:52,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-13 14:52:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:52,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:52:52,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:53,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:52:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:52:53,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:53,200 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:52:53,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:52:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:53,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535653965] [2024-11-13 14:52:53,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535653965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:53,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:52:53,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-13 14:52:53,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743994060] [2024-11-13 14:52:53,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:53,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:52:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:52:53,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:52:53,385 INFO L87 Difference]: Start difference. First operand 429 states and 622 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:53,852 INFO L93 Difference]: Finished difference Result 867 states and 1253 transitions. [2024-11-13 14:52:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:52:53,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 121 [2024-11-13 14:52:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:53,855 INFO L225 Difference]: With dead ends: 867 [2024-11-13 14:52:53,855 INFO L226 Difference]: Without dead ends: 441 [2024-11-13 14:52:53,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:52:53,860 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 429 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:53,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 750 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:52:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-13 14:52:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 429. [2024-11-13 14:52:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 392 states have (on average 1.433673469387755) internal successors, (562), 392 states have internal predecessors, (562), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 618 transitions. [2024-11-13 14:52:53,905 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 618 transitions. Word has length 121 [2024-11-13 14:52:53,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:53,905 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 618 transitions. [2024-11-13 14:52:53,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 618 transitions. [2024-11-13 14:52:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:53,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:53,909 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:53,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-13 14:52:54,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:54,109 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1660963786, now seen corresponding path program 1 times [2024-11-13 14:52:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:54,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577779963] [2024-11-13 14:52:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:54,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:54,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:54,112 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:54,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-13 14:52:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:54,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:52:54,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:54,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:52:54,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 14:52:54,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:52:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 14:52:55,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:55,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:55,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577779963] [2024-11-13 14:52:55,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577779963] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:55,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:52:55,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-11-13 14:52:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321531336] [2024-11-13 14:52:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:55,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:52:55,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:52:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:52:55,282 INFO L87 Difference]: Start difference. First operand 429 states and 618 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:55,642 INFO L93 Difference]: Finished difference Result 945 states and 1355 transitions. [2024-11-13 14:52:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:52:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:52:55,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:55,645 INFO L225 Difference]: With dead ends: 945 [2024-11-13 14:52:55,646 INFO L226 Difference]: Without dead ends: 519 [2024-11-13 14:52:55,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:52:55,649 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 150 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:55,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1426 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-13 14:52:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 362. [2024-11-13 14:52:55,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 325 states have (on average 1.4123076923076923) internal successors, (459), 325 states have internal predecessors, (459), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 515 transitions. [2024-11-13 14:52:55,694 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 515 transitions. Word has length 121 [2024-11-13 14:52:55,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:55,695 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 515 transitions. [2024-11-13 14:52:55,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 515 transitions. [2024-11-13 14:52:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:55,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:55,697 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:55,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-13 14:52:55,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:55,898 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:55,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash 133320139, now seen corresponding path program 1 times [2024-11-13 14:52:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512042973] [2024-11-13 14:52:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:55,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:55,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:55,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:55,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-13 14:52:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:56,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:52:56,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:56,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:52:56,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:52:56,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:52:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:52:56,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:57,013 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:52:57,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:52:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:57,207 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:57,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512042973] [2024-11-13 14:52:57,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512042973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:57,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:52:57,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-13 14:52:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553863477] [2024-11-13 14:52:57,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:57,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:52:57,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:57,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:52:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:52:57,209 INFO L87 Difference]: Start difference. First operand 362 states and 515 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:58,528 INFO L93 Difference]: Finished difference Result 1080 states and 1524 transitions. [2024-11-13 14:52:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:52:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 121 [2024-11-13 14:52:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:58,532 INFO L225 Difference]: With dead ends: 1080 [2024-11-13 14:52:58,532 INFO L226 Difference]: Without dead ends: 721 [2024-11-13 14:52:58,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:52:58,533 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 785 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:58,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1134 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:52:58,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-13 14:52:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 434. [2024-11-13 14:52:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 397 states have (on average 1.4357682619647356) internal successors, (570), 397 states have internal predecessors, (570), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:52:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 626 transitions. [2024-11-13 14:52:58,574 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 626 transitions. Word has length 121 [2024-11-13 14:52:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:58,574 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 626 transitions. [2024-11-13 14:52:58,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:52:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 626 transitions. [2024-11-13 14:52:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:52:58,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:58,577 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:58,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-13 14:52:58,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:58,777 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:58,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:58,778 INFO L85 PathProgramCache]: Analyzing trace with hash -453485875, now seen corresponding path program 1 times [2024-11-13 14:52:58,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:58,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269206534] [2024-11-13 14:52:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:58,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:52:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:58,780 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:52:58,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-13 14:52:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:59,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:52:59,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:00,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:53:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:00,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:53:00,662 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:00,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269206534] [2024-11-13 14:53:00,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269206534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:00,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:53:00,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955443919] [2024-11-13 14:53:00,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:00,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:00,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:53:00,663 INFO L87 Difference]: Start difference. First operand 434 states and 626 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:01,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:01,580 INFO L93 Difference]: Finished difference Result 913 states and 1311 transitions. [2024-11-13 14:53:01,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:53:01,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:53:01,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:01,583 INFO L225 Difference]: With dead ends: 913 [2024-11-13 14:53:01,583 INFO L226 Difference]: Without dead ends: 482 [2024-11-13 14:53:01,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:53:01,585 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 315 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:01,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 867 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:53:01,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-13 14:53:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 434. [2024-11-13 14:53:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 397 states have (on average 1.4357682619647356) internal successors, (570), 397 states have internal predecessors, (570), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 626 transitions. [2024-11-13 14:53:01,630 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 626 transitions. Word has length 121 [2024-11-13 14:53:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:01,631 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 626 transitions. [2024-11-13 14:53:01,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 626 transitions. [2024-11-13 14:53:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:53:01,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:01,633 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:01,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-13 14:53:01,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:01,834 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:01,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash -484622525, now seen corresponding path program 1 times [2024-11-13 14:53:01,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:01,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536551621] [2024-11-13 14:53:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:01,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:01,839 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:01,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-13 14:53:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:53:02,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:02,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2024-11-13 14:53:02,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2024-11-13 14:53:02,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 104 [2024-11-13 14:53:02,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 87 [2024-11-13 14:53:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:02,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:03,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2024-11-13 14:53:03,321 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 14:53:03,325 INFO L349 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2024-11-13 14:53:03,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 1 [2024-11-13 14:53:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:03,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:03,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536551621] [2024-11-13 14:53:03,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536551621] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:03,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:03,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2024-11-13 14:53:03,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054076457] [2024-11-13 14:53:03,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:03,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:53:03,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:03,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:53:03,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:53:03,397 INFO L87 Difference]: Start difference. First operand 434 states and 626 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:03,664 INFO L93 Difference]: Finished difference Result 1120 states and 1617 transitions. [2024-11-13 14:53:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:53:03,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:53:03,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:03,666 INFO L225 Difference]: With dead ends: 1120 [2024-11-13 14:53:03,666 INFO L226 Difference]: Without dead ends: 689 [2024-11-13 14:53:03,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:53:03,667 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 151 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:03,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1081 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:53:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-13 14:53:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 592. [2024-11-13 14:53:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 555 states have (on average 1.4576576576576576) internal successors, (809), 555 states have internal predecessors, (809), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 865 transitions. [2024-11-13 14:53:03,718 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 865 transitions. Word has length 121 [2024-11-13 14:53:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:03,719 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 865 transitions. [2024-11-13 14:53:03,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 865 transitions. [2024-11-13 14:53:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:53:03,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:03,721 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:03,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-13 14:53:03,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:03,922 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:03,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1913442186, now seen corresponding path program 1 times [2024-11-13 14:53:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34836359] [2024-11-13 14:53:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:03,924 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:03,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-13 14:53:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:53:04,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:04,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-13 14:53:04,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 14:53:04,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 14:53:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 14:53:04,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:05,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:05,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34836359] [2024-11-13 14:53:05,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34836359] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:05,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:05,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2024-11-13 14:53:05,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627313324] [2024-11-13 14:53:05,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:05,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:53:05,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:53:05,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:53:05,209 INFO L87 Difference]: Start difference. First operand 592 states and 865 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:05,761 INFO L93 Difference]: Finished difference Result 1267 states and 1845 transitions. [2024-11-13 14:53:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:53:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:53:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:05,765 INFO L225 Difference]: With dead ends: 1267 [2024-11-13 14:53:05,765 INFO L226 Difference]: Without dead ends: 678 [2024-11-13 14:53:05,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:53:05,766 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 281 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:05,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 2075 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:05,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-13 14:53:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2024-11-13 14:53:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 554 states have (on average 1.4584837545126355) internal successors, (808), 554 states have internal predecessors, (808), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 864 transitions. [2024-11-13 14:53:05,816 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 864 transitions. Word has length 121 [2024-11-13 14:53:05,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:05,817 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 864 transitions. [2024-11-13 14:53:05,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 864 transitions. [2024-11-13 14:53:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:53:05,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:05,820 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:05,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-13 14:53:06,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:06,020 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:06,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:06,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1291166442, now seen corresponding path program 1 times [2024-11-13 14:53:06,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:06,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856495846] [2024-11-13 14:53:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:06,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:06,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:06,023 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:06,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-13 14:53:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:06,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:53:06,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:06,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-13 14:53:07,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:53:07,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 40 [2024-11-13 14:53:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 14:53:07,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:07,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:07,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856495846] [2024-11-13 14:53:07,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856495846] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:07,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:07,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 20 [2024-11-13 14:53:07,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697915294] [2024-11-13 14:53:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:07,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:53:07,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:53:07,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:07,690 INFO L87 Difference]: Start difference. First operand 591 states and 864 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:08,212 INFO L93 Difference]: Finished difference Result 1271 states and 1849 transitions. [2024-11-13 14:53:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:53:08,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:53:08,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:08,214 INFO L225 Difference]: With dead ends: 1271 [2024-11-13 14:53:08,214 INFO L226 Difference]: Without dead ends: 683 [2024-11-13 14:53:08,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:53:08,216 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 147 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:08,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 2231 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:53:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-13 14:53:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 531. [2024-11-13 14:53:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 494 states have (on average 1.4493927125506072) internal successors, (716), 494 states have internal predecessors, (716), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 772 transitions. [2024-11-13 14:53:08,268 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 772 transitions. Word has length 121 [2024-11-13 14:53:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:08,269 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 772 transitions. [2024-11-13 14:53:08,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 772 transitions. [2024-11-13 14:53:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 14:53:08,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:08,271 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:08,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-13 14:53:08,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:08,471 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:08,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:08,472 INFO L85 PathProgramCache]: Analyzing trace with hash 278270312, now seen corresponding path program 1 times [2024-11-13 14:53:08,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:08,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138071350] [2024-11-13 14:53:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:08,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:08,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:08,474 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:08,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-13 14:53:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:08,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:53:08,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:09,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:53:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:09,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:53:09,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:09,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138071350] [2024-11-13 14:53:09,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138071350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:09,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:09,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:53:09,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995456210] [2024-11-13 14:53:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:09,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:09,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:53:09,241 INFO L87 Difference]: Start difference. First operand 531 states and 772 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:09,720 INFO L93 Difference]: Finished difference Result 1194 states and 1742 transitions. [2024-11-13 14:53:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:53:09,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 14:53:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:09,722 INFO L225 Difference]: With dead ends: 1194 [2024-11-13 14:53:09,722 INFO L226 Difference]: Without dead ends: 666 [2024-11-13 14:53:09,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:53:09,724 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 394 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:09,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 765 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-13 14:53:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 531. [2024-11-13 14:53:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 494 states have (on average 1.4331983805668016) internal successors, (708), 494 states have internal predecessors, (708), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 764 transitions. [2024-11-13 14:53:09,780 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 764 transitions. Word has length 121 [2024-11-13 14:53:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:09,780 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 764 transitions. [2024-11-13 14:53:09,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 764 transitions. [2024-11-13 14:53:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:09,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:09,782 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:09,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-13 14:53:09,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:09,986 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:09,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:09,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1173283612, now seen corresponding path program 1 times [2024-11-13 14:53:09,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167894346] [2024-11-13 14:53:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:09,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:09,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:09,989 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:09,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-13 14:53:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:10,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:53:10,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:10,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:10,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:10,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:53:10,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:53:10,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-11-13 14:53:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:11,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:11,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-13 14:53:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:11,483 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:11,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167894346] [2024-11-13 14:53:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167894346] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-13 14:53:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241500686] [2024-11-13 14:53:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:11,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:11,484 INFO L87 Difference]: Start difference. First operand 531 states and 764 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:12,774 INFO L93 Difference]: Finished difference Result 1289 states and 1845 transitions. [2024-11-13 14:53:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 14:53:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:12,776 INFO L225 Difference]: With dead ends: 1289 [2024-11-13 14:53:12,776 INFO L226 Difference]: Without dead ends: 761 [2024-11-13 14:53:12,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:12,778 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 391 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:12,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1390 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:53:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-13 14:53:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 700. [2024-11-13 14:53:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 657 states have (on average 1.4337899543378996) internal successors, (942), 659 states have internal predecessors, (942), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-13 14:53:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1006 transitions. [2024-11-13 14:53:12,841 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1006 transitions. Word has length 123 [2024-11-13 14:53:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:12,841 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1006 transitions. [2024-11-13 14:53:12,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1006 transitions. [2024-11-13 14:53:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:12,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:12,844 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:12,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-13 14:53:13,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:13,044 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:13,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash 355635162, now seen corresponding path program 1 times [2024-11-13 14:53:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:13,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350699619] [2024-11-13 14:53:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:13,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:13,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:13,049 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:13,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-13 14:53:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:13,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:53:13,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:13,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:13,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:13,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:53:13,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-13 14:53:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:14,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:14,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:14,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350699619] [2024-11-13 14:53:14,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350699619] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:14,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:14,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-13 14:53:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893464602] [2024-11-13 14:53:14,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:14,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:14,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:14,427 INFO L87 Difference]: Start difference. First operand 700 states and 1006 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:15,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:15,069 INFO L93 Difference]: Finished difference Result 1518 states and 2170 transitions. [2024-11-13 14:53:15,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:15,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 14:53:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:15,073 INFO L225 Difference]: With dead ends: 1518 [2024-11-13 14:53:15,074 INFO L226 Difference]: Without dead ends: 821 [2024-11-13 14:53:15,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:15,076 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 621 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:15,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1369 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-13 14:53:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 644. [2024-11-13 14:53:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 601 states have (on average 1.420965058236273) internal successors, (854), 603 states have internal predecessors, (854), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-13 14:53:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 918 transitions. [2024-11-13 14:53:15,146 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 918 transitions. Word has length 123 [2024-11-13 14:53:15,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:15,147 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 918 transitions. [2024-11-13 14:53:15,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:15,147 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 918 transitions. [2024-11-13 14:53:15,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:15,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:15,149 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:15,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-13 14:53:15,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:15,350 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:15,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2011039032, now seen corresponding path program 1 times [2024-11-13 14:53:15,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:15,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669295919] [2024-11-13 14:53:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:15,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:15,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:15,353 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:15,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-13 14:53:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:15,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:53:15,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:16,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:53:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:53:16,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:16,410 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:16,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:53:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:16,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:16,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669295919] [2024-11-13 14:53:16,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669295919] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:16,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:16,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-11-13 14:53:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441836066] [2024-11-13 14:53:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:16,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:16,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:16,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:53:16,629 INFO L87 Difference]: Start difference. First operand 644 states and 918 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:53:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:16,985 INFO L93 Difference]: Finished difference Result 1289 states and 1837 transitions. [2024-11-13 14:53:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:16,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-11-13 14:53:16,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:16,988 INFO L225 Difference]: With dead ends: 1289 [2024-11-13 14:53:16,988 INFO L226 Difference]: Without dead ends: 648 [2024-11-13 14:53:16,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:16,990 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 664 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:16,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 351 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:53:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-13 14:53:17,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 644. [2024-11-13 14:53:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 601 states have (on average 1.4176372712146423) internal successors, (852), 603 states have internal predecessors, (852), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-13 14:53:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 916 transitions. [2024-11-13 14:53:17,061 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 916 transitions. Word has length 123 [2024-11-13 14:53:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:17,062 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 916 transitions. [2024-11-13 14:53:17,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:53:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 916 transitions. [2024-11-13 14:53:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:17,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:17,064 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:17,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-13 14:53:17,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:17,265 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:17,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1852375176, now seen corresponding path program 1 times [2024-11-13 14:53:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329891717] [2024-11-13 14:53:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:17,267 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:17,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-13 14:53:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:17,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:53:17,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:18,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:18,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:18,296 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:18,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:53:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:18,481 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329891717] [2024-11-13 14:53:18,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329891717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:53:18,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:53:18,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2024-11-13 14:53:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496236005] [2024-11-13 14:53:18,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:53:18,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:53:18,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:18,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:53:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:53:18,482 INFO L87 Difference]: Start difference. First operand 644 states and 916 transitions. Second operand has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:18,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:18,970 INFO L93 Difference]: Finished difference Result 1297 states and 1841 transitions. [2024-11-13 14:53:18,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:53:18,971 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 123 [2024-11-13 14:53:18,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:18,974 INFO L225 Difference]: With dead ends: 1297 [2024-11-13 14:53:18,974 INFO L226 Difference]: Without dead ends: 656 [2024-11-13 14:53:18,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:53:18,975 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 392 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:18,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 739 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:53:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-13 14:53:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 644. [2024-11-13 14:53:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 601 states have (on average 1.4143094841930117) internal successors, (850), 603 states have internal predecessors, (850), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-13 14:53:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 914 transitions. [2024-11-13 14:53:19,062 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 914 transitions. Word has length 123 [2024-11-13 14:53:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:19,062 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 914 transitions. [2024-11-13 14:53:19,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 914 transitions. [2024-11-13 14:53:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:19,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:19,065 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:19,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-13 14:53:19,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:19,266 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:19,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1762533750, now seen corresponding path program 1 times [2024-11-13 14:53:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:19,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651428535] [2024-11-13 14:53:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:19,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:19,268 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:19,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-13 14:53:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:19,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:53:19,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:19,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:19,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:20,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:53:20,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:53:20,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-13 14:53:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:20,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:20,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-13 14:53:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:20,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:20,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651428535] [2024-11-13 14:53:20,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651428535] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:20,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:20,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-13 14:53:20,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877443411] [2024-11-13 14:53:20,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:20,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:20,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:20,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:20,815 INFO L87 Difference]: Start difference. First operand 644 states and 914 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:21,793 INFO L93 Difference]: Finished difference Result 1507 states and 2126 transitions. [2024-11-13 14:53:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:21,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 14:53:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:21,796 INFO L225 Difference]: With dead ends: 1507 [2024-11-13 14:53:21,797 INFO L226 Difference]: Without dead ends: 866 [2024-11-13 14:53:21,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:21,798 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 469 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:21,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 971 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:53:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-13 14:53:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 715. [2024-11-13 14:53:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 676 states have (on average 1.4289940828402368) internal successors, (966), 676 states have internal predecessors, (966), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1022 transitions. [2024-11-13 14:53:21,858 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1022 transitions. Word has length 123 [2024-11-13 14:53:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:21,859 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1022 transitions. [2024-11-13 14:53:21,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1022 transitions. [2024-11-13 14:53:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:21,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:21,861 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:21,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-13 14:53:22,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:22,062 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:22,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:22,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1543679032, now seen corresponding path program 1 times [2024-11-13 14:53:22,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938023440] [2024-11-13 14:53:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:22,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:22,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:22,066 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:22,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-13 14:53:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:22,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:53:22,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:22,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:22,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:23,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 14:53:23,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2024-11-13 14:53:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:23,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:23,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938023440] [2024-11-13 14:53:23,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938023440] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:23,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:23,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-13 14:53:23,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567598202] [2024-11-13 14:53:23,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:23,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:23,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:23,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:23,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:23,552 INFO L87 Difference]: Start difference. First operand 715 states and 1022 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:24,187 INFO L93 Difference]: Finished difference Result 1601 states and 2269 transitions. [2024-11-13 14:53:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:24,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 14:53:24,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:24,190 INFO L225 Difference]: With dead ends: 1601 [2024-11-13 14:53:24,190 INFO L226 Difference]: Without dead ends: 889 [2024-11-13 14:53:24,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:24,191 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 385 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:24,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1184 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:24,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-13 14:53:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 659. [2024-11-13 14:53:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 620 states have (on average 1.4161290322580644) internal successors, (878), 620 states have internal predecessors, (878), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 934 transitions. [2024-11-13 14:53:24,251 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 934 transitions. Word has length 123 [2024-11-13 14:53:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:24,251 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 934 transitions. [2024-11-13 14:53:24,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 934 transitions. [2024-11-13 14:53:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:53:24,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:24,253 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:24,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-13 14:53:24,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:24,454 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:24,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873241, now seen corresponding path program 1 times [2024-11-13 14:53:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:24,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234990718] [2024-11-13 14:53:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:24,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:24,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:24,456 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:24,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-13 14:53:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:24,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:53:24,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:25,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 33 [2024-11-13 14:53:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:53:25,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:26,168 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:26,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234990718] [2024-11-13 14:53:26,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234990718] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:26,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:26,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-13 14:53:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757951457] [2024-11-13 14:53:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:26,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:26,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:53:26,170 INFO L87 Difference]: Start difference. First operand 659 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:26,342 INFO L93 Difference]: Finished difference Result 1362 states and 1918 transitions. [2024-11-13 14:53:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:53:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 14:53:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:26,346 INFO L225 Difference]: With dead ends: 1362 [2024-11-13 14:53:26,346 INFO L226 Difference]: Without dead ends: 706 [2024-11-13 14:53:26,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:53:26,348 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 68 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:26,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 518 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:53:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-13 14:53:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 643. [2024-11-13 14:53:26,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 604 states have (on average 1.413907284768212) internal successors, (854), 604 states have internal predecessors, (854), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 910 transitions. [2024-11-13 14:53:26,406 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 910 transitions. Word has length 123 [2024-11-13 14:53:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:26,407 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 910 transitions. [2024-11-13 14:53:26,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 910 transitions. [2024-11-13 14:53:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:26,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:26,409 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:26,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2024-11-13 14:53:26,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:26,610 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1947602909, now seen corresponding path program 1 times [2024-11-13 14:53:26,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:26,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188564336] [2024-11-13 14:53:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:26,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:26,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:26,612 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:26,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-13 14:53:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:26,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:53:27,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:27,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:53:27,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:53:27,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:27,759 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:53:27,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:28,211 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:28,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188564336] [2024-11-13 14:53:28,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188564336] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:28,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:28,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 19 [2024-11-13 14:53:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848946544] [2024-11-13 14:53:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:28,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:53:28,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:28,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:53:28,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:53:28,212 INFO L87 Difference]: Start difference. First operand 643 states and 910 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:28,711 INFO L93 Difference]: Finished difference Result 1407 states and 1971 transitions. [2024-11-13 14:53:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:53:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-11-13 14:53:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:28,715 INFO L225 Difference]: With dead ends: 1407 [2024-11-13 14:53:28,715 INFO L226 Difference]: Without dead ends: 767 [2024-11-13 14:53:28,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:53:28,716 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 158 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:28,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1976 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:53:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-13 14:53:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 645. [2024-11-13 14:53:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 606 states have (on average 1.4125412541254125) internal successors, (856), 606 states have internal predecessors, (856), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 912 transitions. [2024-11-13 14:53:28,773 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 912 transitions. Word has length 125 [2024-11-13 14:53:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:28,773 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 912 transitions. [2024-11-13 14:53:28,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 912 transitions. [2024-11-13 14:53:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:28,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:28,775 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:28,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-13 14:53:28,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:28,976 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:28,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -237176105, now seen corresponding path program 1 times [2024-11-13 14:53:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795937836] [2024-11-13 14:53:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:28,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:28,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:28,979 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:28,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-13 14:53:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:29,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:53:29,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:29,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:29,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:53:29,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:53:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:53:29,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:30,081 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:30,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:53:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:30,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:30,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795937836] [2024-11-13 14:53:30,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795937836] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:30,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:30,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 14 [2024-11-13 14:53:30,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477143422] [2024-11-13 14:53:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:30,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:53:30,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:53:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:53:30,289 INFO L87 Difference]: Start difference. First operand 645 states and 912 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:53:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:31,293 INFO L93 Difference]: Finished difference Result 1457 states and 2028 transitions. [2024-11-13 14:53:31,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:53:31,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-11-13 14:53:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:31,297 INFO L225 Difference]: With dead ends: 1457 [2024-11-13 14:53:31,297 INFO L226 Difference]: Without dead ends: 815 [2024-11-13 14:53:31,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:53:31,299 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 527 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:31,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 955 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-13 14:53:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 645. [2024-11-13 14:53:31,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 606 states have (on average 1.4059405940594059) internal successors, (852), 606 states have internal predecessors, (852), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:31,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 908 transitions. [2024-11-13 14:53:31,373 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 908 transitions. Word has length 125 [2024-11-13 14:53:31,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:31,373 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 908 transitions. [2024-11-13 14:53:31,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:53:31,373 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 908 transitions. [2024-11-13 14:53:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:31,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:31,376 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:31,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-13 14:53:31,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:31,576 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:31,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1054824555, now seen corresponding path program 1 times [2024-11-13 14:53:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601341358] [2024-11-13 14:53:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:31,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:31,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:31,582 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:31,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-13 14:53:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:32,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:53:32,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:32,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:32,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:32,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 14:53:32,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:32,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:32,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:32,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601341358] [2024-11-13 14:53:32,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601341358] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:32,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:32,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-13 14:53:32,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112755133] [2024-11-13 14:53:32,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:32,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:32,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:32,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:53:32,756 INFO L87 Difference]: Start difference. First operand 645 states and 908 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:33,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:33,060 INFO L93 Difference]: Finished difference Result 1344 states and 1885 transitions. [2024-11-13 14:53:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:53:33,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-11-13 14:53:33,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:33,062 INFO L225 Difference]: With dead ends: 1344 [2024-11-13 14:53:33,062 INFO L226 Difference]: Without dead ends: 702 [2024-11-13 14:53:33,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:53:33,064 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 238 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:33,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 680 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:53:33,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-13 14:53:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 585. [2024-11-13 14:53:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 546 states have (on average 1.4065934065934067) internal successors, (768), 546 states have internal predecessors, (768), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:33,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 824 transitions. [2024-11-13 14:53:33,103 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 824 transitions. Word has length 125 [2024-11-13 14:53:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:33,103 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 824 transitions. [2024-11-13 14:53:33,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 824 transitions. [2024-11-13 14:53:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:33,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:33,105 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:33,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-13 14:53:33,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:33,305 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:33,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:33,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1568077253, now seen corresponding path program 1 times [2024-11-13 14:53:33,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:33,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301906620] [2024-11-13 14:53:33,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:33,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:33,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:33,308 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:33,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-13 14:53:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:33,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:53:33,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:33,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:33,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:34,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:53:34,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-11-13 14:53:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:34,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:34,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:34,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301906620] [2024-11-13 14:53:34,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301906620] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:34,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:34,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-13 14:53:34,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573255047] [2024-11-13 14:53:34,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:34,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:34,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:34,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:34,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:53:34,814 INFO L87 Difference]: Start difference. First operand 585 states and 824 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:35,370 INFO L93 Difference]: Finished difference Result 1509 states and 2128 transitions. [2024-11-13 14:53:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:53:35,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-11-13 14:53:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:35,373 INFO L225 Difference]: With dead ends: 1509 [2024-11-13 14:53:35,373 INFO L226 Difference]: Without dead ends: 927 [2024-11-13 14:53:35,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:35,374 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 448 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:35,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 935 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-13 14:53:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 645. [2024-11-13 14:53:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 606 states have (on average 1.4290429042904291) internal successors, (866), 606 states have internal predecessors, (866), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 922 transitions. [2024-11-13 14:53:35,415 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 922 transitions. Word has length 125 [2024-11-13 14:53:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:35,415 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 922 transitions. [2024-11-13 14:53:35,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 922 transitions. [2024-11-13 14:53:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:35,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:35,416 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:35,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-13 14:53:35,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:35,617 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:35,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1434063747, now seen corresponding path program 1 times [2024-11-13 14:53:35,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:35,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292864988] [2024-11-13 14:53:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:35,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:35,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:35,619 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:35,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-13 14:53:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:36,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:53:36,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:36,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:53:36,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:53:36,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:53:36,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-13 14:53:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:53:36,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:37,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:37,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292864988] [2024-11-13 14:53:37,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292864988] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:37,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:37,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-13 14:53:37,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59238258] [2024-11-13 14:53:37,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:37,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:37,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:37,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:53:37,406 INFO L87 Difference]: Start difference. First operand 645 states and 922 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:38,200 INFO L93 Difference]: Finished difference Result 1398 states and 1982 transitions. [2024-11-13 14:53:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-11-13 14:53:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:38,204 INFO L225 Difference]: With dead ends: 1398 [2024-11-13 14:53:38,204 INFO L226 Difference]: Without dead ends: 756 [2024-11-13 14:53:38,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:53:38,206 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 474 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:38,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1257 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:38,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-13 14:53:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 522. [2024-11-13 14:53:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 483 states have (on average 1.4099378881987579) internal successors, (681), 483 states have internal predecessors, (681), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:53:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 737 transitions. [2024-11-13 14:53:38,257 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 737 transitions. Word has length 125 [2024-11-13 14:53:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:38,258 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 737 transitions. [2024-11-13 14:53:38,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 737 transitions. [2024-11-13 14:53:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:53:38,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:38,259 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:38,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-13 14:53:38,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:38,460 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:38,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash 444796733, now seen corresponding path program 1 times [2024-11-13 14:53:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:38,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077275673] [2024-11-13 14:53:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:38,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:38,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:38,462 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:38,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-13 14:53:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:38,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:53:38,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:40,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:53:40,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:53:40,647 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:53:40,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:40,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:53:41,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077275673] [2024-11-13 14:53:41,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077275673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887248419] [2024-11-13 14:53:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:41,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:53:41,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:53:41,091 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:53:41,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-13 14:53:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:41,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:53:41,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:41,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:53:42,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:53:42,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2024-11-13 14:53:42,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 43 [2024-11-13 14:53:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:42,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887248419] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:53:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 15] total 26 [2024-11-13 14:53:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590439202] [2024-11-13 14:53:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:43,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:53:43,125 INFO L87 Difference]: Start difference. First operand 522 states and 737 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:43,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:43,822 INFO L93 Difference]: Finished difference Result 1268 states and 1781 transitions. [2024-11-13 14:53:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:53:43,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-11-13 14:53:43,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:43,826 INFO L225 Difference]: With dead ends: 1268 [2024-11-13 14:53:43,827 INFO L226 Difference]: Without dead ends: 749 [2024-11-13 14:53:43,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:53:43,829 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 106 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:43,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1295 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:53:43,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-13 14:53:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2024-11-13 14:53:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 690 states have (on average 1.391304347826087) internal successors, (960), 692 states have internal predecessors, (960), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:53:43,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1040 transitions. [2024-11-13 14:53:43,913 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1040 transitions. Word has length 125 [2024-11-13 14:53:43,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:43,913 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1040 transitions. [2024-11-13 14:53:43,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1040 transitions. [2024-11-13 14:53:43,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 14:53:43,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:43,915 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:43,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-13 14:53:44,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-13 14:53:44,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:53:44,316 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:44,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2074512076, now seen corresponding path program 1 times [2024-11-13 14:53:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:44,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717812480] [2024-11-13 14:53:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:44,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:44,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:44,318 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:44,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-13 14:53:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:44,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:53:44,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:45,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:53:45,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2024-11-13 14:53:45,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:53:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:45,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:53:45,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:45,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717812480] [2024-11-13 14:53:45,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717812480] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:45,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:53:45,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 18 [2024-11-13 14:53:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996859614] [2024-11-13 14:53:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:45,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:53:45,781 INFO L87 Difference]: Start difference. First operand 745 states and 1040 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:46,177 INFO L93 Difference]: Finished difference Result 1171 states and 1608 transitions. [2024-11-13 14:53:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:46,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 126 [2024-11-13 14:53:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:46,182 INFO L225 Difference]: With dead ends: 1171 [2024-11-13 14:53:46,182 INFO L226 Difference]: Without dead ends: 1169 [2024-11-13 14:53:46,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:53:46,184 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 138 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:46,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1508 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:53:46,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-13 14:53:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1003. [2024-11-13 14:53:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 948 states have (on average 1.3881856540084387) internal successors, (1316), 950 states have internal predecessors, (1316), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:53:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2024-11-13 14:53:46,305 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 126 [2024-11-13 14:53:46,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:46,306 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2024-11-13 14:53:46,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:53:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2024-11-13 14:53:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:53:46,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:46,308 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:46,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-13 14:53:46,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:46,511 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:46,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:46,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1593847540, now seen corresponding path program 1 times [2024-11-13 14:53:46,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:46,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953000555] [2024-11-13 14:53:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:46,516 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:46,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-13 14:53:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:46,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:53:46,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:47,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:47,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:53:47,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:53:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:47,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:47,930 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:47,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:53:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:48,245 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953000555] [2024-11-13 14:53:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953000555] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:53:48,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:53:48,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2024-11-13 14:53:48,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366239251] [2024-11-13 14:53:48,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:53:48,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:53:48,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:48,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:53:48,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:53:48,246 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 transitions. Second operand has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:49,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:49,730 INFO L93 Difference]: Finished difference Result 2218 states and 3057 transitions. [2024-11-13 14:53:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 14:53:49,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 127 [2024-11-13 14:53:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:49,735 INFO L225 Difference]: With dead ends: 2218 [2024-11-13 14:53:49,735 INFO L226 Difference]: Without dead ends: 1218 [2024-11-13 14:53:49,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:53:49,737 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 713 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:49,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1223 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:53:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2024-11-13 14:53:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1003. [2024-11-13 14:53:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 948 states have (on average 1.3839662447257384) internal successors, (1312), 950 states have internal predecessors, (1312), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:53:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2024-11-13 14:53:49,809 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 127 [2024-11-13 14:53:49,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:49,809 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2024-11-13 14:53:49,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2024-11-13 14:53:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:53:49,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:49,812 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:49,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-13 14:53:50,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:50,012 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 5499638, now seen corresponding path program 1 times [2024-11-13 14:53:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720848078] [2024-11-13 14:53:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:50,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:50,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:50,015 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:50,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-13 14:53:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:50,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:53:50,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:51,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:53:51,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:53:51,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:53:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:51,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:51,401 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:51,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:53:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:51,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:51,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720848078] [2024-11-13 14:53:51,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720848078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:53:51,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:53:51,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2024-11-13 14:53:51,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855349605] [2024-11-13 14:53:51,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:53:51,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:53:51,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:51,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:53:51,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:53:51,636 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 14 states, 12 states have (on average 6.75) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:53,167 INFO L93 Difference]: Finished difference Result 2214 states and 3045 transitions. [2024-11-13 14:53:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 14:53:53,167 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.75) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 127 [2024-11-13 14:53:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:53,170 INFO L225 Difference]: With dead ends: 2214 [2024-11-13 14:53:53,170 INFO L226 Difference]: Without dead ends: 1214 [2024-11-13 14:53:53,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:53:53,172 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 838 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:53,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1215 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:53:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-13 14:53:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 999. [2024-11-13 14:53:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 944 states have (on average 1.3771186440677967) internal successors, (1300), 946 states have internal predecessors, (1300), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:53:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1380 transitions. [2024-11-13 14:53:53,241 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1380 transitions. Word has length 127 [2024-11-13 14:53:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:53,241 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1380 transitions. [2024-11-13 14:53:53,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.75) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:53:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1380 transitions. [2024-11-13 14:53:53,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 14:53:53,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:53,242 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:53,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-13 14:53:53,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:53,443 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:53,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1456450161, now seen corresponding path program 1 times [2024-11-13 14:53:53,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:53,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876878984] [2024-11-13 14:53:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:53,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:53,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:53,446 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:53,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-13 14:53:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:53,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 14:53:53,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:54,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:53:54,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:53:54,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2024-11-13 14:53:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:54,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:53:55,519 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:53:55,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2024-11-13 14:53:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:53:55,733 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:53:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876878984] [2024-11-13 14:53:55,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876878984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:53:55,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:53:55,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2024-11-13 14:53:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240349898] [2024-11-13 14:53:55,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:53:55,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 14:53:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:53:55,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 14:53:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:53:55,735 INFO L87 Difference]: Start difference. First operand 999 states and 1380 transitions. Second operand has 26 states, 24 states have (on average 4.541666666666667) internal successors, (109), 26 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-13 14:53:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:58,151 INFO L93 Difference]: Finished difference Result 1197 states and 1622 transitions. [2024-11-13 14:53:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:53:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.541666666666667) internal successors, (109), 26 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 128 [2024-11-13 14:53:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:58,157 INFO L225 Difference]: With dead ends: 1197 [2024-11-13 14:53:58,157 INFO L226 Difference]: Without dead ends: 1195 [2024-11-13 14:53:58,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=323, Invalid=1747, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 14:53:58,158 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 897 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:58,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 3011 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 14:53:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-13 14:53:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1003. [2024-11-13 14:53:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 948 states have (on average 1.3776371308016877) internal successors, (1306), 950 states have internal predecessors, (1306), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:53:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1386 transitions. [2024-11-13 14:53:58,243 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1386 transitions. Word has length 128 [2024-11-13 14:53:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:58,244 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1386 transitions. [2024-11-13 14:53:58,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.541666666666667) internal successors, (109), 26 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-13 14:53:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1386 transitions. [2024-11-13 14:53:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 14:53:58,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:58,246 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:58,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-13 14:53:58,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:58,446 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:58,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2118373401, now seen corresponding path program 1 times [2024-11-13 14:53:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108569460] [2024-11-13 14:53:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:58,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:58,451 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:58,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-13 14:53:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:58,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:53:58,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:59,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:53:59,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2024-11-13 14:53:59,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 14:53:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:53:59,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:00,317 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:54:00,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2024-11-13 14:54:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:54:00,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:00,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108569460] [2024-11-13 14:54:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108569460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:00,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:54:00,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2024-11-13 14:54:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153873037] [2024-11-13 14:54:00,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:00,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 14:54:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:00,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 14:54:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:54:00,512 INFO L87 Difference]: Start difference. First operand 1003 states and 1386 transitions. Second operand has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 24 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-13 14:54:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:02,503 INFO L93 Difference]: Finished difference Result 1132 states and 1539 transitions. [2024-11-13 14:54:02,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:54:02,504 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 24 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 128 [2024-11-13 14:54:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:02,508 INFO L225 Difference]: With dead ends: 1132 [2024-11-13 14:54:02,508 INFO L226 Difference]: Without dead ends: 1130 [2024-11-13 14:54:02,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=302, Invalid=1504, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 14:54:02,510 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 498 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:02,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 2168 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:54:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-11-13 14:54:02,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1003. [2024-11-13 14:54:02,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 948 states have (on average 1.3776371308016877) internal successors, (1306), 950 states have internal predecessors, (1306), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1386 transitions. [2024-11-13 14:54:02,636 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1386 transitions. Word has length 128 [2024-11-13 14:54:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:02,636 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1386 transitions. [2024-11-13 14:54:02,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 24 states have internal predecessors, (109), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-13 14:54:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1386 transitions. [2024-11-13 14:54:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:02,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:02,639 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:02,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-13 14:54:02,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:02,840 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:02,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash -772830412, now seen corresponding path program 1 times [2024-11-13 14:54:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:02,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584139908] [2024-11-13 14:54:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:02,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:02,846 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:02,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-13 14:54:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:03,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:54:03,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:03,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:54:04,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:54:04,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:54:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:54:04,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:04,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:04,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584139908] [2024-11-13 14:54:04,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584139908] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:04,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:54:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2024-11-13 14:54:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174305219] [2024-11-13 14:54:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:04,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:54:04,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:04,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:54:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:54:04,832 INFO L87 Difference]: Start difference. First operand 1003 states and 1386 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:05,780 INFO L93 Difference]: Finished difference Result 1383 states and 1890 transitions. [2024-11-13 14:54:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:54:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:05,786 INFO L225 Difference]: With dead ends: 1383 [2024-11-13 14:54:05,786 INFO L226 Difference]: Without dead ends: 1381 [2024-11-13 14:54:05,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:54:05,788 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 133 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:05,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2895 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:54:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-11-13 14:54:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1195. [2024-11-13 14:54:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1140 states have (on average 1.3859649122807018) internal successors, (1580), 1142 states have internal predecessors, (1580), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1660 transitions. [2024-11-13 14:54:05,945 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1660 transitions. Word has length 130 [2024-11-13 14:54:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:05,946 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1660 transitions. [2024-11-13 14:54:05,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1660 transitions. [2024-11-13 14:54:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:05,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:05,948 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:05,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-13 14:54:06,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:06,153 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:06,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:06,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1582177038, now seen corresponding path program 1 times [2024-11-13 14:54:06,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:06,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814962955] [2024-11-13 14:54:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:06,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:06,158 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:06,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-13 14:54:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:06,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:54:06,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:07,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2024-11-13 14:54:07,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 14:54:07,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2024-11-13 14:54:07,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:54:07,148 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-13 14:54:07,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:54:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:54:07,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:07,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2024-11-13 14:54:07,369 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 14:54:07,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:54:07,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2024-11-13 14:54:07,611 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:54:07,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:54:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:54:07,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:07,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814962955] [2024-11-13 14:54:07,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814962955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:07,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:54:07,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-11-13 14:54:07,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103452652] [2024-11-13 14:54:07,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:07,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:54:07,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:07,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:54:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:54:07,826 INFO L87 Difference]: Start difference. First operand 1195 states and 1660 transitions. Second operand has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 13 states have internal predecessors, (100), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:54:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:08,984 INFO L93 Difference]: Finished difference Result 2683 states and 3680 transitions. [2024-11-13 14:54:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:54:08,985 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 13 states have internal predecessors, (100), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 130 [2024-11-13 14:54:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:08,989 INFO L225 Difference]: With dead ends: 2683 [2024-11-13 14:54:08,989 INFO L226 Difference]: Without dead ends: 1491 [2024-11-13 14:54:08,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:54:08,991 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 979 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:08,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1085 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:54:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-13 14:54:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1043. [2024-11-13 14:54:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 988 states have (on average 1.374493927125506) internal successors, (1358), 990 states have internal predecessors, (1358), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1438 transitions. [2024-11-13 14:54:09,074 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1438 transitions. Word has length 130 [2024-11-13 14:54:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:09,074 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1438 transitions. [2024-11-13 14:54:09,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 13 states have internal predecessors, (100), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:54:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1438 transitions. [2024-11-13 14:54:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:09,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:09,076 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:09,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-13 14:54:09,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:09,276 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:09,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1150397622, now seen corresponding path program 1 times [2024-11-13 14:54:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512110572] [2024-11-13 14:54:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:09,279 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:09,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-13 14:54:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:09,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:54:09,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:10,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2024-11-13 14:54:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 14:54:10,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2024-11-13 14:54:10,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:54:10,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 4 [2024-11-13 14:54:10,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:54:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:54:10,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:10,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2024-11-13 14:54:10,439 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 14:54:10,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:54:10,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2024-11-13 14:54:10,621 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:54:10,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:54:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:54:10,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512110572] [2024-11-13 14:54:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512110572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:10,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:54:10,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-11-13 14:54:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97678139] [2024-11-13 14:54:10,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:10,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:54:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:54:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:54:10,830 INFO L87 Difference]: Start difference. First operand 1043 states and 1438 transitions. Second operand has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:54:12,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:12,218 INFO L93 Difference]: Finished difference Result 2145 states and 2906 transitions. [2024-11-13 14:54:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:54:12,218 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 130 [2024-11-13 14:54:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:12,222 INFO L225 Difference]: With dead ends: 2145 [2024-11-13 14:54:12,222 INFO L226 Difference]: Without dead ends: 1105 [2024-11-13 14:54:12,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:54:12,224 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1100 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:12,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1248 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:54:12,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-13 14:54:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 851. [2024-11-13 14:54:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 796 states have (on average 1.3592964824120604) internal successors, (1082), 798 states have internal predecessors, (1082), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1162 transitions. [2024-11-13 14:54:12,323 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1162 transitions. Word has length 130 [2024-11-13 14:54:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:12,323 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1162 transitions. [2024-11-13 14:54:12,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:54:12,324 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1162 transitions. [2024-11-13 14:54:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:12,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:12,326 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:12,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-13 14:54:12,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:12,526 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:12,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -962865708, now seen corresponding path program 1 times [2024-11-13 14:54:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068249353] [2024-11-13 14:54:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:12,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:12,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:12,530 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:12,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-13 14:54:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:13,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:14,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:14,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:15,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:15,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068249353] [2024-11-13 14:54:15,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068249353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329520786] [2024-11-13 14:54:15,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:15,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:15,871 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:15,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-13 14:54:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:16,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:54:16,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:16,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:54:17,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-13 14:54:17,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:54:18,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:54:18,062 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:18,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:18,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329520786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:18,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:54:18,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-13 14:54:18,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613764162] [2024-11-13 14:54:18,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:18,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:54:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:18,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:54:18,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:54:18,064 INFO L87 Difference]: Start difference. First operand 851 states and 1162 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:20,771 INFO L93 Difference]: Finished difference Result 2289 states and 3108 transitions. [2024-11-13 14:54:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:54:20,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:20,777 INFO L225 Difference]: With dead ends: 2289 [2024-11-13 14:54:20,777 INFO L226 Difference]: Without dead ends: 1441 [2024-11-13 14:54:20,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:54:20,779 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 476 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:20,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1472 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:54:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-13 14:54:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 921. [2024-11-13 14:54:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 866 states have (on average 1.3787528868360277) internal successors, (1194), 868 states have internal predecessors, (1194), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:20,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1274 transitions. [2024-11-13 14:54:20,890 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1274 transitions. Word has length 130 [2024-11-13 14:54:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:20,890 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1274 transitions. [2024-11-13 14:54:20,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1274 transitions. [2024-11-13 14:54:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:20,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:20,892 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:20,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-13 14:54:21,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-13 14:54:21,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:21,293 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:21,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2052237910, now seen corresponding path program 1 times [2024-11-13 14:54:21,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:21,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300643351] [2024-11-13 14:54:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:21,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:21,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:21,296 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:21,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-13 14:54:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:21,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:21,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:23,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:23,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:23,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:24,290 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:24,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300643351] [2024-11-13 14:54:24,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300643351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:24,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598451951] [2024-11-13 14:54:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:24,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:24,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:24,292 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:24,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-13 14:54:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:24,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:54:24,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:54:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:25,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598451951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:25,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:54:25,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2024-11-13 14:54:25,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103582813] [2024-11-13 14:54:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:25,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:54:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:54:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:54:25,774 INFO L87 Difference]: Start difference. First operand 921 states and 1274 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:27,872 INFO L93 Difference]: Finished difference Result 2165 states and 2963 transitions. [2024-11-13 14:54:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:54:27,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:27,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:27,878 INFO L225 Difference]: With dead ends: 2165 [2024-11-13 14:54:27,878 INFO L226 Difference]: Without dead ends: 1247 [2024-11-13 14:54:27,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:54:27,883 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 358 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:27,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1069 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 14:54:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-13 14:54:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 913. [2024-11-13 14:54:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 858 states have (on average 1.372960372960373) internal successors, (1178), 860 states have internal predecessors, (1178), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2024-11-13 14:54:27,972 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 130 [2024-11-13 14:54:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:27,973 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2024-11-13 14:54:27,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2024-11-13 14:54:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:27,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:27,975 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:27,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-13 14:54:28,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-13 14:54:28,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:28,376 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:28,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1337956882, now seen corresponding path program 1 times [2024-11-13 14:54:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:28,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147219581] [2024-11-13 14:54:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:28,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:28,380 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:28,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-13 14:54:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:28,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:28,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:30,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:30,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:31,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:31,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:31,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147219581] [2024-11-13 14:54:31,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147219581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:31,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542676445] [2024-11-13 14:54:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:31,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:31,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:31,793 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:31,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-13 14:54:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:32,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:54:32,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:32,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:54:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:33,313 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:33,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542676445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:33,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:54:33,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2024-11-13 14:54:33,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633227993] [2024-11-13 14:54:33,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:33,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:54:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:33,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:54:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:54:33,314 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:35,142 INFO L93 Difference]: Finished difference Result 2157 states and 2943 transitions. [2024-11-13 14:54:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:54:35,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:35,146 INFO L225 Difference]: With dead ends: 2157 [2024-11-13 14:54:35,146 INFO L226 Difference]: Without dead ends: 1247 [2024-11-13 14:54:35,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:54:35,147 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 330 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:35,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1137 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:54:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-13 14:54:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 913. [2024-11-13 14:54:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 858 states have (on average 1.372960372960373) internal successors, (1178), 860 states have internal predecessors, (1178), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:35,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2024-11-13 14:54:35,229 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 130 [2024-11-13 14:54:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:35,229 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2024-11-13 14:54:35,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2024-11-13 14:54:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:35,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:35,232 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:35,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-11-13 14:54:35,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-13 14:54:35,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:35,633 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:35,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:35,633 INFO L85 PathProgramCache]: Analyzing trace with hash 960362326, now seen corresponding path program 1 times [2024-11-13 14:54:35,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:35,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906920557] [2024-11-13 14:54:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:35,637 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:35,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-13 14:54:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:36,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:36,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:37,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:37,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:38,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:38,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906920557] [2024-11-13 14:54:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906920557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546741717] [2024-11-13 14:54:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:38,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:38,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:38,943 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:38,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-13 14:54:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:39,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:54:39,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:39,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:54:40,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2024-11-13 14:54:40,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:54:41,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:54:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:41,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:41,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546741717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:54:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-13 14:54:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189600093] [2024-11-13 14:54:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:41,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:54:41,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:54:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:54:41,085 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:43,527 INFO L93 Difference]: Finished difference Result 2413 states and 3296 transitions. [2024-11-13 14:54:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:54:43,528 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:43,533 INFO L225 Difference]: With dead ends: 2413 [2024-11-13 14:54:43,533 INFO L226 Difference]: Without dead ends: 1503 [2024-11-13 14:54:43,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:54:43,536 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 473 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:43,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1515 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:54:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-13 14:54:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 981. [2024-11-13 14:54:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 926 states have (on average 1.388768898488121) internal successors, (1286), 928 states have internal predecessors, (1286), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:43,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1366 transitions. [2024-11-13 14:54:43,679 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1366 transitions. Word has length 130 [2024-11-13 14:54:43,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:43,680 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1366 transitions. [2024-11-13 14:54:43,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1366 transitions. [2024-11-13 14:54:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:43,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:43,682 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:43,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-13 14:54:43,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-11-13 14:54:44,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:44,082 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:44,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:44,083 INFO L85 PathProgramCache]: Analyzing trace with hash -319501352, now seen corresponding path program 1 times [2024-11-13 14:54:44,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:44,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515868118] [2024-11-13 14:54:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:44,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:44,085 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:44,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-13 14:54:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:44,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:44,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:46,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:46,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:46,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:47,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:47,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515868118] [2024-11-13 14:54:47,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515868118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:47,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246094216] [2024-11-13 14:54:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:47,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:47,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:47,360 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-13 14:54:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:47,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 14:54:47,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:48,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:54:49,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:54:49,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:54:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:54:50,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:51,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246094216] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:51,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:54:51,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 13] total 30 [2024-11-13 14:54:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847175524] [2024-11-13 14:54:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:51,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:54:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:51,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:54:51,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:54:51,917 INFO L87 Difference]: Start difference. First operand 981 states and 1366 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:53,500 INFO L93 Difference]: Finished difference Result 2191 states and 3081 transitions. [2024-11-13 14:54:53,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:54:53,501 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:53,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:53,503 INFO L225 Difference]: With dead ends: 2191 [2024-11-13 14:54:53,503 INFO L226 Difference]: Without dead ends: 1213 [2024-11-13 14:54:53,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=142, Invalid=1418, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:54:53,505 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:53,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1469 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:54:53,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-13 14:54:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1059. [2024-11-13 14:54:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 1004 states have (on average 1.406374501992032) internal successors, (1412), 1006 states have internal predecessors, (1412), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1492 transitions. [2024-11-13 14:54:53,582 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1492 transitions. Word has length 130 [2024-11-13 14:54:53,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:53,582 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1492 transitions. [2024-11-13 14:54:53,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:53,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1492 transitions. [2024-11-13 14:54:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:53,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:53,584 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:53,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-11-13 14:54:53,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-13 14:54:53,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:53,985 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:53,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -381766056, now seen corresponding path program 1 times [2024-11-13 14:54:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:53,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862031475] [2024-11-13 14:54:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:53,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:53,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:53,987 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:53,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-13 14:54:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:54,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:54:54,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:54:54,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:54,447 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:54,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862031475] [2024-11-13 14:54:54,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862031475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:54,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:54,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:54,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541922349] [2024-11-13 14:54:54,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:54,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:54,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:54,448 INFO L87 Difference]: Start difference. First operand 1059 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:54,549 INFO L93 Difference]: Finished difference Result 2127 states and 3005 transitions. [2024-11-13 14:54:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:54,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:54:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:54,553 INFO L225 Difference]: With dead ends: 2127 [2024-11-13 14:54:54,553 INFO L226 Difference]: Without dead ends: 1071 [2024-11-13 14:54:54,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:54,555 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:54,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:54,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-13 14:54:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2024-11-13 14:54:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1016 states have (on average 1.3858267716535433) internal successors, (1408), 1018 states have internal predecessors, (1408), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:54:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1488 transitions. [2024-11-13 14:54:54,675 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1488 transitions. Word has length 130 [2024-11-13 14:54:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:54,676 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1488 transitions. [2024-11-13 14:54:54,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:54:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1488 transitions. [2024-11-13 14:54:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:54:54,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:54,678 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:54,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-11-13 14:54:54,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:54,879 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:54,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:54,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1033782380, now seen corresponding path program 1 times [2024-11-13 14:54:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:54,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506155291] [2024-11-13 14:54:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:54,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:54:54,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:54,882 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:54:54,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-13 14:54:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:55,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:54:55,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:56,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:54:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:54:57,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:58,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:54:58,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:58,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506155291] [2024-11-13 14:54:58,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506155291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:58,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985247426] [2024-11-13 14:54:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:58,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:58,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:58,515 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:58,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-13 14:54:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:58,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 14:54:58,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:59,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:55:00,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:55:00,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:55:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:55:01,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:02,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985247426] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:02,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:55:02,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 13] total 30 [2024-11-13 14:55:02,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15713709] [2024-11-13 14:55:02,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:02,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:55:02,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:02,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:55:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:55:02,736 INFO L87 Difference]: Start difference. First operand 1071 states and 1488 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:04,734 INFO L93 Difference]: Finished difference Result 2318 states and 3225 transitions. [2024-11-13 14:55:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:55:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:55:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:04,749 INFO L225 Difference]: With dead ends: 2318 [2024-11-13 14:55:04,749 INFO L226 Difference]: Without dead ends: 1250 [2024-11-13 14:55:04,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=142, Invalid=1418, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:55:04,751 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 35 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:04,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1672 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:55:04,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-13 14:55:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1083. [2024-11-13 14:55:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1028 states have (on average 1.3929961089494163) internal successors, (1432), 1030 states have internal predecessors, (1432), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1512 transitions. [2024-11-13 14:55:04,830 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1512 transitions. Word has length 130 [2024-11-13 14:55:04,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:04,830 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1512 transitions. [2024-11-13 14:55:04,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:04,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1512 transitions. [2024-11-13 14:55:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:55:04,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:04,832 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:04,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-11-13 14:55:05,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:05,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:05,232 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:05,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:05,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1981321238, now seen corresponding path program 1 times [2024-11-13 14:55:05,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:05,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388745166] [2024-11-13 14:55:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:05,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:05,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:05,235 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:05,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-11-13 14:55:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:05,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:05,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:07,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:07,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:08,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:09,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388745166] [2024-11-13 14:55:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388745166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195302399] [2024-11-13 14:55:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:09,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:09,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:09,179 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:09,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-13 14:55:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:09,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:55:09,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:09,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:55:10,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-13 14:55:10,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:55:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:11,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195302399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:11,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:11,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2024-11-13 14:55:11,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279048337] [2024-11-13 14:55:11,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:11,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:55:11,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:11,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:55:11,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:55:11,130 INFO L87 Difference]: Start difference. First operand 1083 states and 1512 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:13,985 INFO L93 Difference]: Finished difference Result 2525 states and 3493 transitions. [2024-11-13 14:55:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:13,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-13 14:55:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:13,988 INFO L225 Difference]: With dead ends: 2525 [2024-11-13 14:55:13,988 INFO L226 Difference]: Without dead ends: 1445 [2024-11-13 14:55:13,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:55:13,990 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 356 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:13,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1305 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:55:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-13 14:55:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1115. [2024-11-13 14:55:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1060 states have (on average 1.4) internal successors, (1484), 1062 states have internal predecessors, (1484), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1564 transitions. [2024-11-13 14:55:14,091 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1564 transitions. Word has length 130 [2024-11-13 14:55:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:14,091 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1564 transitions. [2024-11-13 14:55:14,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1564 transitions. [2024-11-13 14:55:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:14,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:14,092 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:14,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-11-13 14:55:14,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-13 14:55:14,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:14,493 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:14,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:14,493 INFO L85 PathProgramCache]: Analyzing trace with hash -192777658, now seen corresponding path program 1 times [2024-11-13 14:55:14,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:14,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50047418] [2024-11-13 14:55:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:14,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:14,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:14,495 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:14,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-11-13 14:55:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:14,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:55:15,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:15,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:15,029 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:15,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50047418] [2024-11-13 14:55:15,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50047418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:15,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:15,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:55:15,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446034544] [2024-11-13 14:55:15,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:15,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:15,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:15,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:15,030 INFO L87 Difference]: Start difference. First operand 1115 states and 1564 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:15,141 INFO L93 Difference]: Finished difference Result 2237 states and 3145 transitions. [2024-11-13 14:55:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:15,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-11-13 14:55:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:15,149 INFO L225 Difference]: With dead ends: 2237 [2024-11-13 14:55:15,149 INFO L226 Difference]: Without dead ends: 1125 [2024-11-13 14:55:15,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:15,151 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:15,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:55:15,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-13 14:55:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-11-13 14:55:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1070 states have (on average 1.3962616822429907) internal successors, (1494), 1072 states have internal predecessors, (1494), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1574 transitions. [2024-11-13 14:55:15,268 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1574 transitions. Word has length 131 [2024-11-13 14:55:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:15,268 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1574 transitions. [2024-11-13 14:55:15,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1574 transitions. [2024-11-13 14:55:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:15,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:15,269 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:15,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:15,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:15,470 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:15,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2101490490, now seen corresponding path program 1 times [2024-11-13 14:55:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142224650] [2024-11-13 14:55:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:15,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:15,472 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-11-13 14:55:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:16,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:16,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:18,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:18,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:55:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:18,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:19,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:19,481 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142224650] [2024-11-13 14:55:19,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142224650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058775254] [2024-11-13 14:55:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:19,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:19,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:19,484 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:19,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-13 14:55:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:19,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:19,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:20,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:55:20,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:55:20,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:55:20,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:55:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:20,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:20,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058775254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:20,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:20,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:55:20,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536781958] [2024-11-13 14:55:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:20,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:55:20,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:20,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:55:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:55:20,942 INFO L87 Difference]: Start difference. First operand 1125 states and 1574 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:23,320 INFO L93 Difference]: Finished difference Result 2583 states and 3575 transitions. [2024-11-13 14:55:23,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-11-13 14:55:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:23,327 INFO L225 Difference]: With dead ends: 2583 [2024-11-13 14:55:23,327 INFO L226 Difference]: Without dead ends: 1461 [2024-11-13 14:55:23,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:55:23,329 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 349 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:23,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1288 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:55:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2024-11-13 14:55:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1127. [2024-11-13 14:55:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1072 states have (on average 1.3955223880597014) internal successors, (1496), 1074 states have internal predecessors, (1496), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1576 transitions. [2024-11-13 14:55:23,446 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1576 transitions. Word has length 131 [2024-11-13 14:55:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:23,447 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1576 transitions. [2024-11-13 14:55:23,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1576 transitions. [2024-11-13 14:55:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:23,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:23,449 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:23,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2024-11-13 14:55:23,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-13 14:55:23,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:23,849 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:23,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:23,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1375828356, now seen corresponding path program 1 times [2024-11-13 14:55:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:23,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358624491] [2024-11-13 14:55:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:23,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:23,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:23,852 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:23,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-11-13 14:55:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:24,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:24,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:26,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:26,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:55:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:26,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:27,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:27,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:27,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358624491] [2024-11-13 14:55:27,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358624491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:27,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567715715] [2024-11-13 14:55:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:27,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:27,583 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:27,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-13 14:55:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:27,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:55:27,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:28,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:55:28,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:55:28,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:55:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:29,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:29,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567715715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:29,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:29,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:55:29,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058566046] [2024-11-13 14:55:29,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:29,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:55:29,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:29,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:55:29,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:55:29,087 INFO L87 Difference]: Start difference. First operand 1127 states and 1576 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:31,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:31,570 INFO L93 Difference]: Finished difference Result 2585 states and 3575 transitions. [2024-11-13 14:55:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:31,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-11-13 14:55:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:31,575 INFO L225 Difference]: With dead ends: 2585 [2024-11-13 14:55:31,575 INFO L226 Difference]: Without dead ends: 1461 [2024-11-13 14:55:31,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:55:31,577 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 340 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:31,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1340 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:55:31,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2024-11-13 14:55:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1125. [2024-11-13 14:55:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1070 states have (on average 1.394392523364486) internal successors, (1492), 1072 states have internal predecessors, (1492), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1572 transitions. [2024-11-13 14:55:31,727 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1572 transitions. Word has length 131 [2024-11-13 14:55:31,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:31,728 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1572 transitions. [2024-11-13 14:55:31,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:31,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1572 transitions. [2024-11-13 14:55:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:31,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:31,731 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:31,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2024-11-13 14:55:31,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-13 14:55:32,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:32,132 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:32,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1684003716, now seen corresponding path program 1 times [2024-11-13 14:55:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:32,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919846176] [2024-11-13 14:55:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:32,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:32,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:32,134 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:32,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-11-13 14:55:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:32,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:32,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:34,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:34,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:55:34,789 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:34,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:35,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:35,928 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:35,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919846176] [2024-11-13 14:55:35,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919846176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:35,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45944533] [2024-11-13 14:55:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:35,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:35,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:35,930 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:35,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-13 14:55:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:36,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:36,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:36,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:55:36,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:55:36,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-13 14:55:37,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:55:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:37,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:37,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45944533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:37,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:37,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:55:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292347854] [2024-11-13 14:55:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:37,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:55:37,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:55:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:55:37,376 INFO L87 Difference]: Start difference. First operand 1125 states and 1572 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:39,978 INFO L93 Difference]: Finished difference Result 2577 states and 3555 transitions. [2024-11-13 14:55:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-11-13 14:55:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:39,983 INFO L225 Difference]: With dead ends: 2577 [2024-11-13 14:55:39,983 INFO L226 Difference]: Without dead ends: 1455 [2024-11-13 14:55:39,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:55:39,985 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 358 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:39,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1220 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 14:55:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2024-11-13 14:55:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1127. [2024-11-13 14:55:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1072 states have (on average 1.3936567164179106) internal successors, (1494), 1074 states have internal predecessors, (1494), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1574 transitions. [2024-11-13 14:55:40,152 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1574 transitions. Word has length 131 [2024-11-13 14:55:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:40,153 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1574 transitions. [2024-11-13 14:55:40,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1574 transitions. [2024-11-13 14:55:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:55:40,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:40,156 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:40,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2024-11-13 14:55:40,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-13 14:55:40,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:40,557 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:40,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 866355266, now seen corresponding path program 1 times [2024-11-13 14:55:40,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:40,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57281663] [2024-11-13 14:55:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:40,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:40,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:40,560 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:40,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-11-13 14:55:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:41,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:41,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:43,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:43,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:55:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:43,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:43,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:44,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57281663] [2024-11-13 14:55:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57281663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415726307] [2024-11-13 14:55:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:44,346 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-13 14:55:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:44,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:55:44,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:45,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:55:45,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:55:46,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:55:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:55:46,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:55:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415726307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:46,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:55:46,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2024-11-13 14:55:46,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77238694] [2024-11-13 14:55:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:46,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:55:46,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:55:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:55:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:55:46,358 INFO L87 Difference]: Start difference. First operand 1127 states and 1574 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:50,891 INFO L93 Difference]: Finished difference Result 2755 states and 3790 transitions. [2024-11-13 14:55:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:55:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-11-13 14:55:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:50,896 INFO L225 Difference]: With dead ends: 2755 [2024-11-13 14:55:50,896 INFO L226 Difference]: Without dead ends: 1631 [2024-11-13 14:55:50,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:55:50,898 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 455 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:50,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2196 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 14:55:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-13 14:55:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1129. [2024-11-13 14:55:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1074 states have (on average 1.3947858472998138) internal successors, (1498), 1076 states have internal predecessors, (1498), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:55:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1578 transitions. [2024-11-13 14:55:51,048 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1578 transitions. Word has length 131 [2024-11-13 14:55:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:51,049 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1578 transitions. [2024-11-13 14:55:51,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:55:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1578 transitions. [2024-11-13 14:55:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:55:51,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:51,051 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:51,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-13 14:55:51,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2024-11-13 14:55:51,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:51,452 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:55:51,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1045366181, now seen corresponding path program 1 times [2024-11-13 14:55:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:55:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68927202] [2024-11-13 14:55:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:51,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:55:51,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:55:51,455 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:55:51,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2024-11-13 14:55:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:52,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:55:52,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:53,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:55:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:55:53,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:54,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:55:55,182 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:55:55,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68927202] [2024-11-13 14:55:55,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68927202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:55,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394899325] [2024-11-13 14:55:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:55,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:55,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:55,185 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:55,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-13 14:55:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:55,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 14:55:55,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:56,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 14:55:56,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:55:57,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:55:58,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:55:58,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 14:55:59,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:55:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 192 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-13 14:55:59,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:00,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-13 14:56:01,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 14:56:01,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:56:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:01,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394899325] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:01,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:01,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 17] total 32 [2024-11-13 14:56:01,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852863429] [2024-11-13 14:56:01,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:01,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:56:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:56:01,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1212, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 14:56:01,467 INFO L87 Difference]: Start difference. First operand 1129 states and 1578 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:03,567 INFO L93 Difference]: Finished difference Result 2768 states and 3856 transitions. [2024-11-13 14:56:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:56:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-13 14:56:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:03,572 INFO L225 Difference]: With dead ends: 2768 [2024-11-13 14:56:03,572 INFO L226 Difference]: Without dead ends: 1642 [2024-11-13 14:56:03,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:56:03,574 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 704 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:03,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1013 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:56:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-11-13 14:56:03,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1245. [2024-11-13 14:56:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1190 states have (on average 1.4151260504201681) internal successors, (1684), 1192 states have internal predecessors, (1684), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:56:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1764 transitions. [2024-11-13 14:56:03,730 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1764 transitions. Word has length 132 [2024-11-13 14:56:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:03,730 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1764 transitions. [2024-11-13 14:56:03,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1764 transitions. [2024-11-13 14:56:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:56:03,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:03,733 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:03,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-13 14:56:03,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Ended with exit code 0 [2024-11-13 14:56:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:04,134 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:04,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash -24407269, now seen corresponding path program 1 times [2024-11-13 14:56:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042136263] [2024-11-13 14:56:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:04,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:04,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:04,137 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:04,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2024-11-13 14:56:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:04,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:04,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:06,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:06,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:07,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:07,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042136263] [2024-11-13 14:56:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042136263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836959481] [2024-11-13 14:56:07,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:07,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:07,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:07,927 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:07,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-13 14:56:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:08,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:56:08,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:09,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 14:56:09,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:56:10,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:56:10,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:56:11,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 14:56:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 192 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-13 14:56:11,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:12,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-13 14:56:12,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:56:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:12,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836959481] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:12,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:12,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 15] total 27 [2024-11-13 14:56:12,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479208731] [2024-11-13 14:56:12,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:12,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:56:12,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:56:12,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:56:12,505 INFO L87 Difference]: Start difference. First operand 1245 states and 1764 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:13,422 INFO L93 Difference]: Finished difference Result 2827 states and 3958 transitions. [2024-11-13 14:56:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:56:13,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-13 14:56:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:13,426 INFO L225 Difference]: With dead ends: 2827 [2024-11-13 14:56:13,427 INFO L226 Difference]: Without dead ends: 1585 [2024-11-13 14:56:13,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=105, Invalid=1085, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:56:13,429 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 339 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:13,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 797 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:56:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-13 14:56:13,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1233. [2024-11-13 14:56:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1178 states have (on average 1.4125636672325976) internal successors, (1664), 1180 states have internal predecessors, (1664), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:56:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1744 transitions. [2024-11-13 14:56:13,583 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1744 transitions. Word has length 132 [2024-11-13 14:56:13,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:13,584 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1744 transitions. [2024-11-13 14:56:13,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1744 transitions. [2024-11-13 14:56:13,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:56:13,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:13,586 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:13,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:13,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-13 14:56:13,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:13,988 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash 877861853, now seen corresponding path program 1 times [2024-11-13 14:56:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429313061] [2024-11-13 14:56:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:13,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:13,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:13,992 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:13,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-11-13 14:56:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:14,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:14,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:16,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:16,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:17,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:18,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429313061] [2024-11-13 14:56:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429313061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699564199] [2024-11-13 14:56:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:18,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:18,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:18,009 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:18,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-13 14:56:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:18,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:56:18,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:18,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 14:56:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:19,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699564199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:19,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:56:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2024-11-13 14:56:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544805968] [2024-11-13 14:56:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:56:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:56:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:56:19,824 INFO L87 Difference]: Start difference. First operand 1233 states and 1744 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:22,681 INFO L93 Difference]: Finished difference Result 2769 states and 3865 transitions. [2024-11-13 14:56:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:56:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-13 14:56:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:22,685 INFO L225 Difference]: With dead ends: 2769 [2024-11-13 14:56:22,686 INFO L226 Difference]: Without dead ends: 1539 [2024-11-13 14:56:22,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:56:22,688 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 251 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:22,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1531 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:56:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-13 14:56:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1225. [2024-11-13 14:56:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1170 states have (on average 1.4085470085470086) internal successors, (1648), 1172 states have internal predecessors, (1648), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:56:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1728 transitions. [2024-11-13 14:56:22,822 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1728 transitions. Word has length 132 [2024-11-13 14:56:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:22,822 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1728 transitions. [2024-11-13 14:56:22,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1728 transitions. [2024-11-13 14:56:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:56:22,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:22,823 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:22,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:23,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-13 14:56:23,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:23,224 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:23,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1898820765, now seen corresponding path program 1 times [2024-11-13 14:56:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506004415] [2024-11-13 14:56:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:23,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:23,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:23,226 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:23,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-11-13 14:56:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:23,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:23,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:25,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:25,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:26,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:27,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506004415] [2024-11-13 14:56:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506004415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036467589] [2024-11-13 14:56:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:27,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:27,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:27,123 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:27,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-13 14:56:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:27,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:56:27,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:28,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 14:56:28,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-11-13 14:56:28,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:56:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:29,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:29,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036467589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:29,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:56:29,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2024-11-13 14:56:29,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756858637] [2024-11-13 14:56:29,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:29,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:56:29,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:29,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:56:29,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:56:29,298 INFO L87 Difference]: Start difference. First operand 1225 states and 1728 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:34,107 INFO L93 Difference]: Finished difference Result 2765 states and 3853 transitions. [2024-11-13 14:56:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:56:34,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-13 14:56:34,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:34,112 INFO L225 Difference]: With dead ends: 2765 [2024-11-13 14:56:34,112 INFO L226 Difference]: Without dead ends: 1543 [2024-11-13 14:56:34,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:56:34,114 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 248 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:34,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 2015 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 14:56:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-13 14:56:34,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1225. [2024-11-13 14:56:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1170 states have (on average 1.4085470085470086) internal successors, (1648), 1172 states have internal predecessors, (1648), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:56:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1728 transitions. [2024-11-13 14:56:34,272 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1728 transitions. Word has length 132 [2024-11-13 14:56:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:34,273 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1728 transitions. [2024-11-13 14:56:34,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:34,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1728 transitions. [2024-11-13 14:56:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:56:34,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:34,275 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:34,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Ended with exit code 0 [2024-11-13 14:56:34,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:34,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:34,676 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:34,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash 633217212, now seen corresponding path program 1 times [2024-11-13 14:56:34,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:34,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912827191] [2024-11-13 14:56:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:34,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:34,680 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:34,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2024-11-13 14:56:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:35,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:56:35,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:35,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:35,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:35,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912827191] [2024-11-13 14:56:35,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912827191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:35,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:35,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:56:35,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715140242] [2024-11-13 14:56:35,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:35,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:56:35,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:35,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:56:35,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:56:35,346 INFO L87 Difference]: Start difference. First operand 1225 states and 1728 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:35,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:35,526 INFO L93 Difference]: Finished difference Result 2387 states and 3357 transitions. [2024-11-13 14:56:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:56:35,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-13 14:56:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:35,530 INFO L225 Difference]: With dead ends: 2387 [2024-11-13 14:56:35,530 INFO L226 Difference]: Without dead ends: 1165 [2024-11-13 14:56:35,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:56:35,533 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:35,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 504 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:56:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-13 14:56:35,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1161. [2024-11-13 14:56:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1106 states have (on average 1.3779385171790235) internal successors, (1524), 1108 states have internal predecessors, (1524), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 14:56:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1604 transitions. [2024-11-13 14:56:35,643 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1604 transitions. Word has length 132 [2024-11-13 14:56:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:35,643 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1604 transitions. [2024-11-13 14:56:35,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:35,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1604 transitions. [2024-11-13 14:56:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:56:35,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:35,645 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:35,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Ended with exit code 0 [2024-11-13 14:56:35,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:35,845 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:35,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2096114169, now seen corresponding path program 1 times [2024-11-13 14:56:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:35,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824348947] [2024-11-13 14:56:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:35,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:35,848 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:35,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-11-13 14:56:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:36,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:36,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:38,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:38,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:39,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:40,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824348947] [2024-11-13 14:56:40,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824348947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:40,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541916519] [2024-11-13 14:56:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:40,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:40,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:40,150 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:40,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-13 14:56:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:40,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:56:40,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:42,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:56:43,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 26 [2024-11-13 14:56:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:43,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:44,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:45,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541916519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:45,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:56:45,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2024-11-13 14:56:45,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362918003] [2024-11-13 14:56:45,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:56:45,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:56:45,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:56:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:56:45,225 INFO L87 Difference]: Start difference. First operand 1161 states and 1604 transitions. Second operand has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:56:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:48,392 INFO L93 Difference]: Finished difference Result 3112 states and 4309 transitions. [2024-11-13 14:56:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:56:48,393 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 132 [2024-11-13 14:56:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:48,396 INFO L225 Difference]: With dead ends: 3112 [2024-11-13 14:56:48,397 INFO L226 Difference]: Without dead ends: 1954 [2024-11-13 14:56:48,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=149, Invalid=907, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:56:48,398 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 488 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:48,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1505 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:56:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2024-11-13 14:56:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1950. [2024-11-13 14:56:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1843 states have (on average 1.3765599565925122) internal successors, (2537), 1849 states have internal predecessors, (2537), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:56:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2693 transitions. [2024-11-13 14:56:48,613 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2693 transitions. Word has length 132 [2024-11-13 14:56:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:48,614 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 2693 transitions. [2024-11-13 14:56:48,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-13 14:56:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2693 transitions. [2024-11-13 14:56:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:56:48,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:48,618 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:48,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Ended with exit code 0 [2024-11-13 14:56:48,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-13 14:56:49,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:49,018 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash -364037857, now seen corresponding path program 1 times [2024-11-13 14:56:49,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:49,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952102752] [2024-11-13 14:56:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:49,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:49,021 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:49,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-11-13 14:56:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:49,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:49,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:51,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:51,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:56:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:52,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:56:52,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:56:53,448 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:53,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952102752] [2024-11-13 14:56:53,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952102752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:56:53,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617418407] [2024-11-13 14:56:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:53,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:53,450 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:56:53,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-13 14:56:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:53,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:56:53,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:54,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:56:54,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:56:54,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:56:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:56:54,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:54,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617418407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:54,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:56:54,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2024-11-13 14:56:54,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112192477] [2024-11-13 14:56:54,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:54,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:56:54,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:54,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:56:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:56:54,616 INFO L87 Difference]: Start difference. First operand 1950 states and 2693 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:56,110 INFO L93 Difference]: Finished difference Result 4346 states and 5924 transitions. [2024-11-13 14:56:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:56:56,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:56:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:56,114 INFO L225 Difference]: With dead ends: 4346 [2024-11-13 14:56:56,114 INFO L226 Difference]: Without dead ends: 2399 [2024-11-13 14:56:56,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:56:56,116 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 111 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:56,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 932 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:56:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-11-13 14:56:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1954. [2024-11-13 14:56:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1847 states have (on average 1.3757444504602057) internal successors, (2541), 1853 states have internal predecessors, (2541), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:56:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2697 transitions. [2024-11-13 14:56:56,370 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2697 transitions. Word has length 133 [2024-11-13 14:56:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:56,370 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 2697 transitions. [2024-11-13 14:56:56,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:56:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2697 transitions. [2024-11-13 14:56:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:56:56,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:56,372 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:56,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2024-11-13 14:56:56,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-13 14:56:56,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:56,773 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:56,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1181686307, now seen corresponding path program 1 times [2024-11-13 14:56:56,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:56,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337192598] [2024-11-13 14:56:56,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:56,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:56,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:56,776 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:56,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2024-11-13 14:56:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:57,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:57,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:59,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:56:59,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:56:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:56:59,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:00,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:01,095 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:01,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337192598] [2024-11-13 14:57:01,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337192598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876203982] [2024-11-13 14:57:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:01,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:01,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:01,098 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:01,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-13 14:57:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:01,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:57:01,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:01,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:57:02,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:57:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:02,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:02,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876203982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:02,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:02,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2024-11-13 14:57:02,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5743922] [2024-11-13 14:57:02,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:02,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:57:02,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:02,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:57:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:57:02,330 INFO L87 Difference]: Start difference. First operand 1954 states and 2697 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:04,275 INFO L93 Difference]: Finished difference Result 4350 states and 5924 transitions. [2024-11-13 14:57:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:57:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:04,281 INFO L225 Difference]: With dead ends: 4350 [2024-11-13 14:57:04,281 INFO L226 Difference]: Without dead ends: 2399 [2024-11-13 14:57:04,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:04,284 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 111 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:04,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1035 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:57:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-11-13 14:57:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1950. [2024-11-13 14:57:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1843 states have (on average 1.37438958220293) internal successors, (2533), 1849 states have internal predecessors, (2533), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2689 transitions. [2024-11-13 14:57:04,483 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2689 transitions. Word has length 133 [2024-11-13 14:57:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:04,483 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 2689 transitions. [2024-11-13 14:57:04,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:04,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2689 transitions. [2024-11-13 14:57:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:04,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:04,487 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:04,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Ended with exit code 0 [2024-11-13 14:57:04,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-13 14:57:04,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:04,888 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:04,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash -873510947, now seen corresponding path program 1 times [2024-11-13 14:57:04,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:04,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275200748] [2024-11-13 14:57:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:04,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:04,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:04,891 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:04,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2024-11-13 14:57:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:05,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:05,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:07,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:07,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:57:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:08,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:08,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:09,468 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:09,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275200748] [2024-11-13 14:57:09,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275200748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:09,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113861202] [2024-11-13 14:57:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:09,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:09,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:09,471 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:09,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-13 14:57:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:10,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:57:10,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:10,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 14:57:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:11,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:11,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113861202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:11,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:11,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:57:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395379620] [2024-11-13 14:57:11,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:11,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:57:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:11,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:57:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:11,235 INFO L87 Difference]: Start difference. First operand 1950 states and 2689 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:14,101 INFO L93 Difference]: Finished difference Result 4342 states and 5913 transitions. [2024-11-13 14:57:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:57:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:14,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:14,105 INFO L225 Difference]: With dead ends: 4342 [2024-11-13 14:57:14,106 INFO L226 Difference]: Without dead ends: 2395 [2024-11-13 14:57:14,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:57:14,109 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 260 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:14,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1342 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 14:57:14,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2024-11-13 14:57:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 1954. [2024-11-13 14:57:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1847 states have (on average 1.3735787763941527) internal successors, (2537), 1853 states have internal predecessors, (2537), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2693 transitions. [2024-11-13 14:57:14,457 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2693 transitions. Word has length 133 [2024-11-13 14:57:14,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:14,458 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 2693 transitions. [2024-11-13 14:57:14,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2693 transitions. [2024-11-13 14:57:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:14,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:14,462 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:14,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-13 14:57:14,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Ended with exit code 0 [2024-11-13 14:57:14,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:14,862 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:14,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1616018015, now seen corresponding path program 1 times [2024-11-13 14:57:14,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:14,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689776830] [2024-11-13 14:57:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:14,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:14,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:14,865 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:14,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2024-11-13 14:57:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:15,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:15,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:17,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:17,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:57:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:18,069 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:18,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:19,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:19,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689776830] [2024-11-13 14:57:19,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689776830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:19,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854927403] [2024-11-13 14:57:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:19,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:19,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:19,580 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:19,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-13 14:57:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:20,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:57:20,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:20,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:57:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:21,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:21,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854927403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:21,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:21,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:57:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794631629] [2024-11-13 14:57:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:21,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:57:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:57:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:21,419 INFO L87 Difference]: Start difference. First operand 1954 states and 2693 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:25,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:25,529 INFO L93 Difference]: Finished difference Result 4412 states and 6000 transitions. [2024-11-13 14:57:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:57:25,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:25,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:25,534 INFO L225 Difference]: With dead ends: 4412 [2024-11-13 14:57:25,534 INFO L226 Difference]: Without dead ends: 2461 [2024-11-13 14:57:25,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:57:25,536 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 353 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:25,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1556 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 14:57:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2024-11-13 14:57:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 1950. [2024-11-13 14:57:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1843 states have (on average 1.3722192078133477) internal successors, (2529), 1849 states have internal predecessors, (2529), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2685 transitions. [2024-11-13 14:57:25,756 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2685 transitions. Word has length 133 [2024-11-13 14:57:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:25,756 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 2685 transitions. [2024-11-13 14:57:25,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:25,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2685 transitions. [2024-11-13 14:57:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:25,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:25,760 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:25,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2024-11-13 14:57:25,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2024-11-13 14:57:26,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:26,161 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:26,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash 880817772, now seen corresponding path program 1 times [2024-11-13 14:57:26,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:26,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105157172] [2024-11-13 14:57:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:26,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:26,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:26,164 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:26,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2024-11-13 14:57:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:26,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:26,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:29,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:29,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:57:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:29,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:30,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:30,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105157172] [2024-11-13 14:57:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105157172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991338522] [2024-11-13 14:57:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:30,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:30,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:30,734 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:30,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-13 14:57:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:31,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:57:31,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:31,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:57:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:32,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:32,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991338522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:32,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:32,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:57:32,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4827995] [2024-11-13 14:57:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:57:32,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:32,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:57:32,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:32,402 INFO L87 Difference]: Start difference. First operand 1950 states and 2685 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:34,787 INFO L93 Difference]: Finished difference Result 4336 states and 5896 transitions. [2024-11-13 14:57:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:57:34,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:34,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:34,791 INFO L225 Difference]: With dead ends: 4336 [2024-11-13 14:57:34,791 INFO L226 Difference]: Without dead ends: 2389 [2024-11-13 14:57:34,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:57:34,793 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 320 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:34,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1066 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:57:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2024-11-13 14:57:35,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1954. [2024-11-13 14:57:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1847 states have (on average 1.3714131023280995) internal successors, (2533), 1853 states have internal predecessors, (2533), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2689 transitions. [2024-11-13 14:57:35,127 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2689 transitions. Word has length 133 [2024-11-13 14:57:35,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:35,127 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 2689 transitions. [2024-11-13 14:57:35,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2689 transitions. [2024-11-13 14:57:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:35,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:35,131 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:35,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-13 14:57:35,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2024-11-13 14:57:35,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:35,532 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:35,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:35,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1976508382, now seen corresponding path program 1 times [2024-11-13 14:57:35,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:35,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493115710] [2024-11-13 14:57:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:35,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:35,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:35,535 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:35,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2024-11-13 14:57:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:36,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:57:36,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:36,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:36,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:36,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493115710] [2024-11-13 14:57:36,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493115710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:36,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:36,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:57:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908318146] [2024-11-13 14:57:36,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:36,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:57:36,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:36,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:57:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:57:36,178 INFO L87 Difference]: Start difference. First operand 1954 states and 2689 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:36,486 INFO L93 Difference]: Finished difference Result 3785 states and 5183 transitions. [2024-11-13 14:57:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:57:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:36,490 INFO L225 Difference]: With dead ends: 3785 [2024-11-13 14:57:36,490 INFO L226 Difference]: Without dead ends: 1834 [2024-11-13 14:57:36,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:57:36,492 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:36,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:57:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2024-11-13 14:57:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1818. [2024-11-13 14:57:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1711 states have (on average 1.3448275862068966) internal successors, (2301), 1717 states have internal predecessors, (2301), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2457 transitions. [2024-11-13 14:57:36,712 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2457 transitions. Word has length 133 [2024-11-13 14:57:36,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:36,712 INFO L471 AbstractCegarLoop]: Abstraction has 1818 states and 2457 transitions. [2024-11-13 14:57:36,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:36,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2457 transitions. [2024-11-13 14:57:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:36,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:36,714 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:36,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2024-11-13 14:57:36,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:36,915 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:36,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:36,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1021366382, now seen corresponding path program 1 times [2024-11-13 14:57:36,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:36,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649475224] [2024-11-13 14:57:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:36,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:36,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:36,921 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:36,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2024-11-13 14:57:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:37,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:37,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:39,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:39,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:57:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:39,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:40,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:41,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:41,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649475224] [2024-11-13 14:57:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649475224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486056145] [2024-11-13 14:57:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:41,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:41,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:41,182 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:41,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-13 14:57:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:41,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:57:41,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:41,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:57:42,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:57:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:42,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486056145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:42,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:42,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-11-13 14:57:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944611519] [2024-11-13 14:57:42,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:42,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:57:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:57:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:42,901 INFO L87 Difference]: Start difference. First operand 1818 states and 2457 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:45,701 INFO L93 Difference]: Finished difference Result 4068 states and 5432 transitions. [2024-11-13 14:57:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:57:45,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:45,705 INFO L225 Difference]: With dead ends: 4068 [2024-11-13 14:57:45,706 INFO L226 Difference]: Without dead ends: 2253 [2024-11-13 14:57:45,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:57:45,708 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 265 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:45,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1299 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:57:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-13 14:57:45,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1814. [2024-11-13 14:57:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1707 states have (on average 1.3432923257176332) internal successors, (2293), 1713 states have internal predecessors, (2293), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2449 transitions. [2024-11-13 14:57:45,930 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2449 transitions. Word has length 133 [2024-11-13 14:57:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:45,931 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2449 transitions. [2024-11-13 14:57:45,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2449 transitions. [2024-11-13 14:57:45,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:57:45,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:45,934 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:45,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2024-11-13 14:57:46,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2024-11-13 14:57:46,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:46,334 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:46,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1762394815, now seen corresponding path program 1 times [2024-11-13 14:57:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708904564] [2024-11-13 14:57:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:46,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:46,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:46,337 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:46,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2024-11-13 14:57:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:47,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:47,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:49,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2024-11-13 14:57:49,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:49,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:50,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 40 [2024-11-13 14:57:51,069 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:51,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708904564] [2024-11-13 14:57:51,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708904564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:51,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085042734] [2024-11-13 14:57:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:51,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:51,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:51,071 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:51,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-13 14:57:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:51,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:57:51,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:53,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-13 14:57:53,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-13 14:57:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:53,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:54,757 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:57:54,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085042734] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:54,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:57:54,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10] total 24 [2024-11-13 14:57:54,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759769734] [2024-11-13 14:57:54,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:54,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:57:54,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:54,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:57:54,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=628, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:57:54,759 INFO L87 Difference]: Start difference. First operand 1814 states and 2449 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:55,638 INFO L93 Difference]: Finished difference Result 3745 states and 5032 transitions. [2024-11-13 14:57:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:57:55,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-11-13 14:57:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:55,642 INFO L225 Difference]: With dead ends: 3745 [2024-11-13 14:57:55,642 INFO L226 Difference]: Without dead ends: 1934 [2024-11-13 14:57:55,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:57:55,646 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 185 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:55,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 647 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:57:55,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-13 14:57:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1790. [2024-11-13 14:57:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1683 states have (on average 1.3339275103980985) internal successors, (2245), 1689 states have internal predecessors, (2245), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2401 transitions. [2024-11-13 14:57:55,893 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2401 transitions. Word has length 133 [2024-11-13 14:57:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:55,893 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2401 transitions. [2024-11-13 14:57:55,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:57:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2401 transitions. [2024-11-13 14:57:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:57:55,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:55,896 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:55,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2024-11-13 14:57:56,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2024-11-13 14:57:56,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:56,297 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:56,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:56,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1274667946, now seen corresponding path program 1 times [2024-11-13 14:57:56,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:56,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144654120] [2024-11-13 14:57:56,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:56,300 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:56,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2024-11-13 14:57:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:56,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:57:56,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:57,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:57:57,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:57:57,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:57:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:57:57,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:57:57,980 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:57:57,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-13 14:57:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:57:58,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:58,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144654120] [2024-11-13 14:57:58,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144654120] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:58,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:57:58,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 14 [2024-11-13 14:57:58,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432294349] [2024-11-13 14:57:58,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:58,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:57:58,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:57:58,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:57:58,261 INFO L87 Difference]: Start difference. First operand 1790 states and 2401 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:57:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:59,575 INFO L93 Difference]: Finished difference Result 3982 states and 5289 transitions. [2024-11-13 14:57:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:57:59,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-13 14:57:59,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:59,580 INFO L225 Difference]: With dead ends: 3982 [2024-11-13 14:57:59,580 INFO L226 Difference]: Without dead ends: 2195 [2024-11-13 14:57:59,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:57:59,583 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 757 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:59,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 814 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:57:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2024-11-13 14:57:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1790. [2024-11-13 14:57:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1683 states have (on average 1.3303624480095069) internal successors, (2239), 1689 states have internal predecessors, (2239), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:57:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2395 transitions. [2024-11-13 14:57:59,944 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2395 transitions. Word has length 134 [2024-11-13 14:57:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:59,945 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2395 transitions. [2024-11-13 14:57:59,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:57:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2395 transitions. [2024-11-13 14:57:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:57:59,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:59,947 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:59,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Ended with exit code 0 [2024-11-13 14:58:00,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:00,147 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:00,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2084014572, now seen corresponding path program 1 times [2024-11-13 14:58:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:00,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216519210] [2024-11-13 14:58:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:00,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:00,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:00,150 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:00,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2024-11-13 14:58:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:00,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 14:58:00,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:01,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 14:58:01,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:58:01,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 14:58:01,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:58:01,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:58:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 14:58:01,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:02,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216519210] [2024-11-13 14:58:02,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216519210] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:02,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:02,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 24 [2024-11-13 14:58:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88119831] [2024-11-13 14:58:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:02,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:58:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:58:02,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:58:02,657 INFO L87 Difference]: Start difference. First operand 1790 states and 2395 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:03,860 INFO L93 Difference]: Finished difference Result 2187 states and 2879 transitions. [2024-11-13 14:58:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:58:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-11-13 14:58:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:03,864 INFO L225 Difference]: With dead ends: 2187 [2024-11-13 14:58:03,864 INFO L226 Difference]: Without dead ends: 2185 [2024-11-13 14:58:03,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:58:03,865 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 130 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:03,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2476 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2024-11-13 14:58:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 1620. [2024-11-13 14:58:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1513 states have (on average 1.343688037012558) internal successors, (2033), 1519 states have internal predecessors, (2033), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2189 transitions. [2024-11-13 14:58:04,115 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2189 transitions. Word has length 134 [2024-11-13 14:58:04,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:04,115 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2189 transitions. [2024-11-13 14:58:04,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2189 transitions. [2024-11-13 14:58:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:58:04,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:04,117 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:04,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Ended with exit code 0 [2024-11-13 14:58:04,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:04,317 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:04,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1320625007, now seen corresponding path program 1 times [2024-11-13 14:58:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885251110] [2024-11-13 14:58:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:04,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:04,320 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:04,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2024-11-13 14:58:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:04,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:58:04,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:05,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 43 [2024-11-13 14:58:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:58:05,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:05,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-13 14:58:05,409 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:58:05,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:05,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885251110] [2024-11-13 14:58:05,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885251110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:58:05,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:58:05,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-13 14:58:05,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35862074] [2024-11-13 14:58:05,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:58:05,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:58:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:58:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:58:05,411 INFO L87 Difference]: Start difference. First operand 1620 states and 2189 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-13 14:58:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:06,377 INFO L93 Difference]: Finished difference Result 3305 states and 4451 transitions. [2024-11-13 14:58:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:58:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 134 [2024-11-13 14:58:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:06,382 INFO L225 Difference]: With dead ends: 3305 [2024-11-13 14:58:06,382 INFO L226 Difference]: Without dead ends: 1644 [2024-11-13 14:58:06,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:58:06,385 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 157 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:06,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 764 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2024-11-13 14:58:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1612. [2024-11-13 14:58:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1505 states have (on average 1.3401993355481727) internal successors, (2017), 1511 states have internal predecessors, (2017), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2173 transitions. [2024-11-13 14:58:06,778 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2173 transitions. Word has length 134 [2024-11-13 14:58:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:06,779 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2173 transitions. [2024-11-13 14:58:06,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-13 14:58:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2173 transitions. [2024-11-13 14:58:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:58:06,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:06,782 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:06,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Ended with exit code 0 [2024-11-13 14:58:06,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:06,983 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:06,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash 521850707, now seen corresponding path program 1 times [2024-11-13 14:58:06,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:06,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715119044] [2024-11-13 14:58:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:06,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:06,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:06,989 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:06,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2024-11-13 14:58:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:07,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:58:07,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:09,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 49 [2024-11-13 14:58:10,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2024-11-13 14:58:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:58:10,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:10,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715119044] [2024-11-13 14:58:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715119044] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:10,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:10,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-13 14:58:10,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95615519] [2024-11-13 14:58:10,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:10,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:58:10,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:10,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:58:10,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:58:10,657 INFO L87 Difference]: Start difference. First operand 1612 states and 2173 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:11,396 INFO L93 Difference]: Finished difference Result 3054 states and 4091 transitions. [2024-11-13 14:58:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:58:11,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-11-13 14:58:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:11,401 INFO L225 Difference]: With dead ends: 3054 [2024-11-13 14:58:11,401 INFO L226 Difference]: Without dead ends: 1445 [2024-11-13 14:58:11,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:58:11,403 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 34 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:11,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 656 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-13 14:58:11,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1413. [2024-11-13 14:58:11,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1306 states have (on average 1.3177641653905054) internal successors, (1721), 1312 states have internal predecessors, (1721), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1877 transitions. [2024-11-13 14:58:11,636 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1877 transitions. Word has length 134 [2024-11-13 14:58:11,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:11,637 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1877 transitions. [2024-11-13 14:58:11,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:11,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1877 transitions. [2024-11-13 14:58:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 14:58:11,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:11,639 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:11,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Ended with exit code 0 [2024-11-13 14:58:11,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:11,839 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:11,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1201468848, now seen corresponding path program 1 times [2024-11-13 14:58:11,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:11,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087574430] [2024-11-13 14:58:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:11,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:11,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:11,842 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:11,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2024-11-13 14:58:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:12,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 14:58:12,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:12,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:12,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:12,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:13,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:58:13,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 14:58:14,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2024-11-13 14:58:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:14,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:15,495 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:15,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087574430] [2024-11-13 14:58:15,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087574430] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:15,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:15,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21] total 29 [2024-11-13 14:58:15,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235952791] [2024-11-13 14:58:15,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:15,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:58:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:15,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:58:15,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:58:15,497 INFO L87 Difference]: Start difference. First operand 1413 states and 1877 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:16,639 INFO L93 Difference]: Finished difference Result 3383 states and 4480 transitions. [2024-11-13 14:58:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:58:16,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-13 14:58:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:16,643 INFO L225 Difference]: With dead ends: 3383 [2024-11-13 14:58:16,643 INFO L226 Difference]: Without dead ends: 1973 [2024-11-13 14:58:16,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=103, Invalid=1087, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:58:16,646 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 94 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:16,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1861 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:16,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-13 14:58:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1581. [2024-11-13 14:58:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1474 states have (on average 1.3222523744911805) internal successors, (1949), 1480 states have internal predecessors, (1949), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2105 transitions. [2024-11-13 14:58:16,925 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2105 transitions. Word has length 138 [2024-11-13 14:58:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:16,926 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2105 transitions. [2024-11-13 14:58:16,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2105 transitions. [2024-11-13 14:58:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:16,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:16,928 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:16,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Forceful destruction successful, exit code 0 [2024-11-13 14:58:17,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:17,128 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:17,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:17,129 INFO L85 PathProgramCache]: Analyzing trace with hash -708817428, now seen corresponding path program 1 times [2024-11-13 14:58:17,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:17,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172545439] [2024-11-13 14:58:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:17,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:17,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:17,131 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:17,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2024-11-13 14:58:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:17,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:58:17,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:17,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:17,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:18,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:18,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:58:19,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:58:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:19,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:19,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:19,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172545439] [2024-11-13 14:58:19,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172545439] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:19,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:19,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-13 14:58:19,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596387306] [2024-11-13 14:58:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:19,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:19,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:19,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:19,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:58:19,845 INFO L87 Difference]: Start difference. First operand 1581 states and 2105 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:20,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:20,869 INFO L93 Difference]: Finished difference Result 3875 states and 5180 transitions. [2024-11-13 14:58:20,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:20,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:20,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:20,875 INFO L225 Difference]: With dead ends: 3875 [2024-11-13 14:58:20,875 INFO L226 Difference]: Without dead ends: 2293 [2024-11-13 14:58:20,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:58:20,877 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 160 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:20,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 739 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2024-11-13 14:58:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2005. [2024-11-13 14:58:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1898 states have (on average 1.3429926238145415) internal successors, (2549), 1904 states have internal predecessors, (2549), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2705 transitions. [2024-11-13 14:58:21,225 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2705 transitions. Word has length 140 [2024-11-13 14:58:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:21,226 INFO L471 AbstractCegarLoop]: Abstraction has 2005 states and 2705 transitions. [2024-11-13 14:58:21,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2705 transitions. [2024-11-13 14:58:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:21,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:21,230 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:21,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Ended with exit code 0 [2024-11-13 14:58:21,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:21,431 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:21,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1997801966, now seen corresponding path program 1 times [2024-11-13 14:58:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:21,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529808691] [2024-11-13 14:58:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:21,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:21,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:21,434 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:21,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2024-11-13 14:58:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:22,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 14:58:22,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:22,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:22,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:22,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:23,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:58:23,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:23,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:24,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529808691] [2024-11-13 14:58:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529808691] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-13 14:58:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255014679] [2024-11-13 14:58:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:24,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:58:24,155 INFO L87 Difference]: Start difference. First operand 2005 states and 2705 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:25,251 INFO L93 Difference]: Finished difference Result 4279 states and 5732 transitions. [2024-11-13 14:58:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:25,256 INFO L225 Difference]: With dead ends: 4279 [2024-11-13 14:58:25,256 INFO L226 Difference]: Without dead ends: 2197 [2024-11-13 14:58:25,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:58:25,258 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 220 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:25,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 693 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:58:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2024-11-13 14:58:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1937. [2024-11-13 14:58:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1830 states have (on average 1.3360655737704918) internal successors, (2445), 1836 states have internal predecessors, (2445), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2601 transitions. [2024-11-13 14:58:25,507 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2601 transitions. Word has length 140 [2024-11-13 14:58:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:25,507 INFO L471 AbstractCegarLoop]: Abstraction has 1937 states and 2601 transitions. [2024-11-13 14:58:25,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2601 transitions. [2024-11-13 14:58:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:25,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:25,509 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:25,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Ended with exit code 0 [2024-11-13 14:58:25,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:25,710 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:25,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1150759722, now seen corresponding path program 1 times [2024-11-13 14:58:25,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:25,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658592779] [2024-11-13 14:58:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:25,713 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:25,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2024-11-13 14:58:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:26,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:58:26,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:26,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:26,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:26,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:27,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:58:27,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:58:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:27,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:28,327 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:28,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658592779] [2024-11-13 14:58:28,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658592779] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:28,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:28,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-13 14:58:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540153494] [2024-11-13 14:58:28,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:28,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:28,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:28,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:58:28,329 INFO L87 Difference]: Start difference. First operand 1937 states and 2601 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:29,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:29,257 INFO L93 Difference]: Finished difference Result 4127 states and 5500 transitions. [2024-11-13 14:58:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:29,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:29,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:29,263 INFO L225 Difference]: With dead ends: 4127 [2024-11-13 14:58:29,263 INFO L226 Difference]: Without dead ends: 2189 [2024-11-13 14:58:29,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:58:29,265 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 255 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:29,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 747 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-13 14:58:29,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 1945. [2024-11-13 14:58:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1838 states have (on average 1.3324265505984767) internal successors, (2449), 1844 states have internal predecessors, (2449), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2605 transitions. [2024-11-13 14:58:29,587 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2605 transitions. Word has length 140 [2024-11-13 14:58:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:29,588 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 2605 transitions. [2024-11-13 14:58:29,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2605 transitions. [2024-11-13 14:58:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:29,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:29,591 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:29,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Ended with exit code 0 [2024-11-13 14:58:29,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:29,792 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:29,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:29,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1220979540, now seen corresponding path program 1 times [2024-11-13 14:58:29,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:29,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038273653] [2024-11-13 14:58:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:29,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:29,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:29,796 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:29,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2024-11-13 14:58:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:30,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 14:58:30,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:30,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:30,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:30,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:31,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:58:31,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:31,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:32,245 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:32,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038273653] [2024-11-13 14:58:32,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038273653] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:32,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:32,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-13 14:58:32,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564477329] [2024-11-13 14:58:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:32,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:32,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:32,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:32,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:58:32,247 INFO L87 Difference]: Start difference. First operand 1945 states and 2605 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:33,337 INFO L93 Difference]: Finished difference Result 3851 states and 5111 transitions. [2024-11-13 14:58:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:33,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:33,342 INFO L225 Difference]: With dead ends: 3851 [2024-11-13 14:58:33,342 INFO L226 Difference]: Without dead ends: 1897 [2024-11-13 14:58:33,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:58:33,344 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 150 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:33,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 705 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:58:33,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-13 14:58:33,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1709. [2024-11-13 14:58:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1602 states have (on average 1.3239700374531835) internal successors, (2121), 1608 states have internal predecessors, (2121), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2277 transitions. [2024-11-13 14:58:33,670 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2277 transitions. Word has length 140 [2024-11-13 14:58:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:33,671 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2277 transitions. [2024-11-13 14:58:33,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2277 transitions. [2024-11-13 14:58:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:33,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:33,673 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:33,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2024-11-13 14:58:33,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:33,873 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:33,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash -686185174, now seen corresponding path program 1 times [2024-11-13 14:58:33,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:33,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4122382] [2024-11-13 14:58:33,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:33,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:33,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:33,876 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:33,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2024-11-13 14:58:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:34,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:58:34,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:34,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:34,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:34,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:36,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-13 14:58:36,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:58:36,617 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:36,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:37,245 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:37,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4122382] [2024-11-13 14:58:37,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4122382] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:37,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:37,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-11-13 14:58:37,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124310893] [2024-11-13 14:58:37,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:37,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:37,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:37,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:37,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:58:37,246 INFO L87 Difference]: Start difference. First operand 1709 states and 2277 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:38,157 INFO L93 Difference]: Finished difference Result 3955 states and 5244 transitions. [2024-11-13 14:58:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:38,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:38,163 INFO L225 Difference]: With dead ends: 3955 [2024-11-13 14:58:38,163 INFO L226 Difference]: Without dead ends: 2249 [2024-11-13 14:58:38,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:58:38,165 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 150 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:38,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 750 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-11-13 14:58:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1857. [2024-11-13 14:58:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1750 states have (on average 1.330857142857143) internal successors, (2329), 1756 states have internal predecessors, (2329), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:38,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2485 transitions. [2024-11-13 14:58:38,412 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2485 transitions. Word has length 140 [2024-11-13 14:58:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:38,412 INFO L471 AbstractCegarLoop]: Abstraction has 1857 states and 2485 transitions. [2024-11-13 14:58:38,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2485 transitions. [2024-11-13 14:58:38,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:38,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:38,414 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:38,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (103)] Forceful destruction successful, exit code 0 [2024-11-13 14:58:38,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:38,616 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:38,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:38,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2020434220, now seen corresponding path program 1 times [2024-11-13 14:58:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:38,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252400125] [2024-11-13 14:58:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:38,619 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:38,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2024-11-13 14:58:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:39,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 14:58:39,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:39,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:39,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:39,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:40,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:40,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 14:58:41,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 14:58:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:41,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:58:41,259 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:41,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252400125] [2024-11-13 14:58:41,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252400125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:58:41,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:58:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:58:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874056918] [2024-11-13 14:58:41,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:41,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:58:41,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:58:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:58:41,261 INFO L87 Difference]: Start difference. First operand 1857 states and 2485 transitions. Second operand has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:48,143 INFO L93 Difference]: Finished difference Result 4595 states and 6065 transitions. [2024-11-13 14:58:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:58:48,145 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:48,152 INFO L225 Difference]: With dead ends: 4595 [2024-11-13 14:58:48,152 INFO L226 Difference]: Without dead ends: 2741 [2024-11-13 14:58:48,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:58:48,156 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 457 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:48,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 2505 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 14:58:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2024-11-13 14:58:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1877. [2024-11-13 14:58:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1770 states have (on average 1.3333333333333333) internal successors, (2360), 1776 states have internal predecessors, (2360), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2516 transitions. [2024-11-13 14:58:48,432 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2516 transitions. Word has length 140 [2024-11-13 14:58:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:48,432 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2516 transitions. [2024-11-13 14:58:48,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2516 transitions. [2024-11-13 14:58:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:48,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:48,434 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:48,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (104)] Ended with exit code 0 [2024-11-13 14:58:48,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:48,635 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:48,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1173391976, now seen corresponding path program 1 times [2024-11-13 14:58:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:48,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457239607] [2024-11-13 14:58:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:48,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:48,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:48,638 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:48,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2024-11-13 14:58:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:49,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:58:49,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:49,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:49,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:49,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:54,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 14:58:55,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 14:58:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:55,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:58:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:58:56,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:58:56,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457239607] [2024-11-13 14:58:56,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457239607] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:58:56,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:58:56,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-11-13 14:58:56,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629037812] [2024-11-13 14:58:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:58:56,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:58:56,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:58:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:58:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=400, Unknown=1, NotChecked=0, Total=462 [2024-11-13 14:58:56,076 INFO L87 Difference]: Start difference. First operand 1877 states and 2516 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:58:57,042 INFO L93 Difference]: Finished difference Result 4411 states and 5898 transitions. [2024-11-13 14:58:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:58:57,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:58:57,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:58:57,047 INFO L225 Difference]: With dead ends: 4411 [2024-11-13 14:58:57,047 INFO L226 Difference]: Without dead ends: 2537 [2024-11-13 14:58:57,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=84, Invalid=515, Unknown=1, NotChecked=0, Total=600 [2024-11-13 14:58:57,050 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 228 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:58:57,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 878 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:58:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2024-11-13 14:58:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2029. [2024-11-13 14:58:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1922 states have (on average 1.3236212278876172) internal successors, (2544), 1928 states have internal predecessors, (2544), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:58:57,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2700 transitions. [2024-11-13 14:58:57,404 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2700 transitions. Word has length 140 [2024-11-13 14:58:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:58:57,404 INFO L471 AbstractCegarLoop]: Abstraction has 2029 states and 2700 transitions. [2024-11-13 14:58:57,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:58:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2700 transitions. [2024-11-13 14:58:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:58:57,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:58:57,406 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:58:57,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Ended with exit code 0 [2024-11-13 14:58:57,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:57,607 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:58:57,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:58:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2100616408, now seen corresponding path program 1 times [2024-11-13 14:58:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:58:57,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544130986] [2024-11-13 14:58:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:58:57,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:58:57,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:58:57,610 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:58:57,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2024-11-13 14:58:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:58:58,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 14:58:58,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:58,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:58:58,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:58:58,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:58:59,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:58:59,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-13 14:58:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:58:59,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:59:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:00,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:00,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544130986] [2024-11-13 14:59:00,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544130986] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:59:00,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:59:00,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-13 14:59:00,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505582588] [2024-11-13 14:59:00,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:00,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:59:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:00,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:59:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:59:00,337 INFO L87 Difference]: Start difference. First operand 2029 states and 2700 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:01,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:01,516 INFO L93 Difference]: Finished difference Result 4793 states and 6384 transitions. [2024-11-13 14:59:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:59:01,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:01,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:01,521 INFO L225 Difference]: With dead ends: 4793 [2024-11-13 14:59:01,521 INFO L226 Difference]: Without dead ends: 2763 [2024-11-13 14:59:01,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:59:01,523 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 265 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:01,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 746 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:59:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-13 14:59:01,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2051. [2024-11-13 14:59:01,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1944 states have (on average 1.3209876543209877) internal successors, (2568), 1950 states have internal predecessors, (2568), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2724 transitions. [2024-11-13 14:59:01,755 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2724 transitions. Word has length 140 [2024-11-13 14:59:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:01,756 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 2724 transitions. [2024-11-13 14:59:01,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2724 transitions. [2024-11-13 14:59:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:01,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:01,758 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:01,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (106)] Forceful destruction successful, exit code 0 [2024-11-13 14:59:01,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:01,958 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:01,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1237042860, now seen corresponding path program 1 times [2024-11-13 14:59:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876114509] [2024-11-13 14:59:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:01,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:01,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:01,961 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:01,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2024-11-13 14:59:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:02,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:59:02,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:02,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:02,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:03,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:59:04,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-13 14:59:04,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:59:04,609 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:59:04,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:59:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:05,183 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876114509] [2024-11-13 14:59:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876114509] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:59:05,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:59:05,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-11-13 14:59:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653003107] [2024-11-13 14:59:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:05,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:59:05,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:59:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:59:05,184 INFO L87 Difference]: Start difference. First operand 2051 states and 2724 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:06,114 INFO L93 Difference]: Finished difference Result 4487 states and 5958 transitions. [2024-11-13 14:59:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:59:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:06,121 INFO L225 Difference]: With dead ends: 4487 [2024-11-13 14:59:06,121 INFO L226 Difference]: Without dead ends: 2435 [2024-11-13 14:59:06,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:59:06,125 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 207 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:06,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 760 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:59:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2024-11-13 14:59:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 2079. [2024-11-13 14:59:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1972 states have (on average 1.3225152129817443) internal successors, (2608), 1978 states have internal predecessors, (2608), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2764 transitions. [2024-11-13 14:59:06,380 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2764 transitions. Word has length 140 [2024-11-13 14:59:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:06,380 INFO L471 AbstractCegarLoop]: Abstraction has 2079 states and 2764 transitions. [2024-11-13 14:59:06,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2764 transitions. [2024-11-13 14:59:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:06,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:06,383 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:06,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (107)] Ended with exit code 0 [2024-11-13 14:59:06,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:06,583 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -351305042, now seen corresponding path program 1 times [2024-11-13 14:59:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084911941] [2024-11-13 14:59:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:06,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:06,586 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:06,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2024-11-13 14:59:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:07,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 14:59:07,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:07,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:07,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:07,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:59:08,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:08,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 14:59:08,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 14:59:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:08,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:08,958 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:08,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084911941] [2024-11-13 14:59:08,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084911941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:08,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:08,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:59:08,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982027356] [2024-11-13 14:59:08,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:08,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:59:08,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:08,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:59:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:59:08,960 INFO L87 Difference]: Start difference. First operand 2079 states and 2764 transitions. Second operand has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:16,345 INFO L93 Difference]: Finished difference Result 5087 states and 6681 transitions. [2024-11-13 14:59:16,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:59:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:16,351 INFO L225 Difference]: With dead ends: 5087 [2024-11-13 14:59:16,351 INFO L226 Difference]: Without dead ends: 3011 [2024-11-13 14:59:16,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:59:16,354 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 431 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:16,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 2843 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-13 14:59:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2024-11-13 14:59:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2117. [2024-11-13 14:59:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2010 states have (on average 1.3233830845771144) internal successors, (2660), 2016 states have internal predecessors, (2660), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2816 transitions. [2024-11-13 14:59:16,599 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2816 transitions. Word has length 140 [2024-11-13 14:59:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:16,599 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 2816 transitions. [2024-11-13 14:59:16,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2816 transitions. [2024-11-13 14:59:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:16,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:16,601 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:16,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Ended with exit code 0 [2024-11-13 14:59:16,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:16,802 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:16,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash 419394410, now seen corresponding path program 1 times [2024-11-13 14:59:16,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:16,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754848814] [2024-11-13 14:59:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:16,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:16,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:16,805 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:16,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2024-11-13 14:59:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:17,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 14:59:17,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:17,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:17,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:17,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:59:18,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:59:18,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-13 14:59:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 14:59:19,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:59:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:19,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:19,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754848814] [2024-11-13 14:59:19,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754848814] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:59:19,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:59:19,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-13 14:59:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217930437] [2024-11-13 14:59:19,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:19,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:59:19,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:59:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:59:19,815 INFO L87 Difference]: Start difference. First operand 2117 states and 2816 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:21,093 INFO L93 Difference]: Finished difference Result 4977 states and 6632 transitions. [2024-11-13 14:59:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:59:21,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:21,098 INFO L225 Difference]: With dead ends: 4977 [2024-11-13 14:59:21,098 INFO L226 Difference]: Without dead ends: 2863 [2024-11-13 14:59:21,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:59:21,100 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 81 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:21,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 859 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:59:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2024-11-13 14:59:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2317. [2024-11-13 14:59:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2210 states have (on average 1.3357466063348415) internal successors, (2952), 2216 states have internal predecessors, (2952), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 3108 transitions. [2024-11-13 14:59:21,381 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 3108 transitions. Word has length 140 [2024-11-13 14:59:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:21,382 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 3108 transitions. [2024-11-13 14:59:21,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 3108 transitions. [2024-11-13 14:59:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:21,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:21,386 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:21,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Ended with exit code 0 [2024-11-13 14:59:21,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:21,586 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:21,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1168953492, now seen corresponding path program 1 times [2024-11-13 14:59:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:21,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287839091] [2024-11-13 14:59:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:21,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:21,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:21,589 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:21,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2024-11-13 14:59:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:22,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:59:22,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:22,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:22,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:22,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:59:23,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:59:23,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 14:59:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:23,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:23,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:23,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287839091] [2024-11-13 14:59:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287839091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:23,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:59:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945806968] [2024-11-13 14:59:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:23,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:59:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:59:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:59:23,431 INFO L87 Difference]: Start difference. First operand 2317 states and 3108 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:27,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:27,983 INFO L93 Difference]: Finished difference Result 5375 states and 7134 transitions. [2024-11-13 14:59:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:59:27,984 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:27,989 INFO L225 Difference]: With dead ends: 5375 [2024-11-13 14:59:27,989 INFO L226 Difference]: Without dead ends: 3061 [2024-11-13 14:59:27,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:59:27,991 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 356 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:27,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 2058 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 14:59:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2024-11-13 14:59:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 2317. [2024-11-13 14:59:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2210 states have (on average 1.3375565610859728) internal successors, (2956), 2216 states have internal predecessors, (2956), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 3112 transitions. [2024-11-13 14:59:28,218 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 3112 transitions. Word has length 140 [2024-11-13 14:59:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:28,218 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 3112 transitions. [2024-11-13 14:59:28,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 3112 transitions. [2024-11-13 14:59:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:28,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:28,221 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:28,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (110)] Forceful destruction successful, exit code 0 [2024-11-13 14:59:28,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:28,422 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:28,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1198347286, now seen corresponding path program 1 times [2024-11-13 14:59:28,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:28,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888335945] [2024-11-13 14:59:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:28,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:28,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:28,428 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:28,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2024-11-13 14:59:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:29,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:59:29,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:29,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:29,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:29,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 14:59:29,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 14:59:29,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 14:59:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:30,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:30,076 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888335945] [2024-11-13 14:59:30,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888335945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:30,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:30,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:59:30,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676282380] [2024-11-13 14:59:30,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:30,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:59:30,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:30,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:59:30,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:59:30,078 INFO L87 Difference]: Start difference. First operand 2317 states and 3112 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:34,840 INFO L93 Difference]: Finished difference Result 5281 states and 7007 transitions. [2024-11-13 14:59:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:59:34,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:34,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:34,846 INFO L225 Difference]: With dead ends: 5281 [2024-11-13 14:59:34,846 INFO L226 Difference]: Without dead ends: 2967 [2024-11-13 14:59:34,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:59:34,848 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 352 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:34,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 2278 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 14:59:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2024-11-13 14:59:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2273. [2024-11-13 14:59:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2166 states have (on average 1.3342566943674976) internal successors, (2890), 2172 states have internal predecessors, (2890), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3046 transitions. [2024-11-13 14:59:35,107 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3046 transitions. Word has length 140 [2024-11-13 14:59:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:35,108 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3046 transitions. [2024-11-13 14:59:35,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3046 transitions. [2024-11-13 14:59:35,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:35,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:35,110 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:35,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (111)] Ended with exit code 0 [2024-11-13 14:59:35,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:35,311 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:35,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2089874929, now seen corresponding path program 1 times [2024-11-13 14:59:35,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:35,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739470780] [2024-11-13 14:59:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:35,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:35,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:35,313 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:35,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2024-11-13 14:59:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:36,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 14:59:36,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:36,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:36,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:36,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:59:37,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 14:59:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:37,669 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:37,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:37,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739470780] [2024-11-13 14:59:37,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739470780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:37,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:37,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-13 14:59:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023821245] [2024-11-13 14:59:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:37,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:59:37,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:59:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:59:37,670 INFO L87 Difference]: Start difference. First operand 2273 states and 3046 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:43,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:43,410 INFO L93 Difference]: Finished difference Result 5321 states and 7027 transitions. [2024-11-13 14:59:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:59:43,411 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:43,417 INFO L225 Difference]: With dead ends: 5321 [2024-11-13 14:59:43,417 INFO L226 Difference]: Without dead ends: 3051 [2024-11-13 14:59:43,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:59:43,420 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 458 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:43,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 2581 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:59:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2024-11-13 14:59:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2297. [2024-11-13 14:59:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2190 states have (on average 1.3342465753424657) internal successors, (2922), 2196 states have internal predecessors, (2922), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3078 transitions. [2024-11-13 14:59:43,696 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3078 transitions. Word has length 140 [2024-11-13 14:59:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:43,696 INFO L471 AbstractCegarLoop]: Abstraction has 2297 states and 3078 transitions. [2024-11-13 14:59:43,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3078 transitions. [2024-11-13 14:59:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:43,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:43,698 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:43,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Ended with exit code 0 [2024-11-13 14:59:43,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:43,899 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:43,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:43,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1434392915, now seen corresponding path program 1 times [2024-11-13 14:59:43,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:43,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327830838] [2024-11-13 14:59:43,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:43,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:43,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:43,902 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:43,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (113)] Waiting until timeout for monitored process [2024-11-13 14:59:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:44,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:59:44,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:44,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:44,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:44,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:59:45,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:59:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:45,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:45,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:45,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327830838] [2024-11-13 14:59:45,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327830838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:45,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:45,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:59:45,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894234679] [2024-11-13 14:59:45,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:45,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:59:45,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:45,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:59:45,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:59:45,442 INFO L87 Difference]: Start difference. First operand 2297 states and 3078 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:48,718 INFO L93 Difference]: Finished difference Result 4997 states and 6629 transitions. [2024-11-13 14:59:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:59:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:48,723 INFO L225 Difference]: With dead ends: 4997 [2024-11-13 14:59:48,723 INFO L226 Difference]: Without dead ends: 2703 [2024-11-13 14:59:48,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:59:48,725 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 217 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:48,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2139 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 14:59:48,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2024-11-13 14:59:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2297. [2024-11-13 14:59:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2190 states have (on average 1.3333333333333333) internal successors, (2920), 2196 states have internal predecessors, (2920), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3076 transitions. [2024-11-13 14:59:48,966 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3076 transitions. Word has length 140 [2024-11-13 14:59:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:48,966 INFO L471 AbstractCegarLoop]: Abstraction has 2297 states and 3076 transitions. [2024-11-13 14:59:48,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3076 transitions. [2024-11-13 14:59:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:48,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:48,970 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:48,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (113)] Ended with exit code 0 [2024-11-13 14:59:49,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:49,170 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:49,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1457025169, now seen corresponding path program 1 times [2024-11-13 14:59:49,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:49,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466803081] [2024-11-13 14:59:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:49,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:49,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:49,173 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:49,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2024-11-13 14:59:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:49,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:59:49,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:49,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:50,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:50,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:59:50,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 14:59:50,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-11-13 14:59:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:51,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:51,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:51,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466803081] [2024-11-13 14:59:51,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466803081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:51,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:51,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:59:51,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046813189] [2024-11-13 14:59:51,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:51,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:59:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:51,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:59:51,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:59:51,102 INFO L87 Difference]: Start difference. First operand 2297 states and 3076 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:56,813 INFO L93 Difference]: Finished difference Result 5157 states and 6822 transitions. [2024-11-13 14:59:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:59:56,814 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 14:59:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:56,818 INFO L225 Difference]: With dead ends: 5157 [2024-11-13 14:59:56,818 INFO L226 Difference]: Without dead ends: 2863 [2024-11-13 14:59:56,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:59:56,820 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 293 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:56,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 2803 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 14:59:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2024-11-13 14:59:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2281. [2024-11-13 14:59:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2174 states have (on average 1.3330266789328427) internal successors, (2898), 2180 states have internal predecessors, (2898), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:59:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3054 transitions. [2024-11-13 14:59:57,132 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3054 transitions. Word has length 140 [2024-11-13 14:59:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:57,132 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3054 transitions. [2024-11-13 14:59:57,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:59:57,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3054 transitions. [2024-11-13 14:59:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:57,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:57,136 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:57,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (114)] Ended with exit code 0 [2024-11-13 14:59:57,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:57,336 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:57,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:57,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2141030253, now seen corresponding path program 1 times [2024-11-13 14:59:57,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:59:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118295460] [2024-11-13 14:59:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:59:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:59:57,339 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:59:57,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Waiting until timeout for monitored process [2024-11-13 14:59:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:58,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 14:59:58,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:59:58,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:59:58,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:59:58,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 14:59:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:59:58,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:59:58,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:59:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118295460] [2024-11-13 14:59:58,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118295460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:58,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:58,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 14:59:58,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670902900] [2024-11-13 14:59:58,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:58,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:59:58,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:59:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:59:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:59:58,810 INFO L87 Difference]: Start difference. First operand 2281 states and 3054 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:01,958 INFO L93 Difference]: Finished difference Result 4929 states and 6531 transitions. [2024-11-13 15:00:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:01,964 INFO L225 Difference]: With dead ends: 4929 [2024-11-13 15:00:01,964 INFO L226 Difference]: Without dead ends: 2645 [2024-11-13 15:00:01,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:00:01,966 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 209 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:01,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2211 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 15:00:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-11-13 15:00:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2243. [2024-11-13 15:00:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2136 states have (on average 1.3314606741573034) internal successors, (2844), 2142 states have internal predecessors, (2844), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3000 transitions. [2024-11-13 15:00:02,234 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3000 transitions. Word has length 140 [2024-11-13 15:00:02,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:02,234 INFO L471 AbstractCegarLoop]: Abstraction has 2243 states and 3000 transitions. [2024-11-13 15:00:02,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:02,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3000 transitions. [2024-11-13 15:00:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:02,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:02,237 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:02,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Ended with exit code 0 [2024-11-13 15:00:02,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:02,437 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:02,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1930332753, now seen corresponding path program 1 times [2024-11-13 15:00:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746767592] [2024-11-13 15:00:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:02,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:02,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:02,440 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:02,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (116)] Waiting until timeout for monitored process [2024-11-13 15:00:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:03,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 15:00:03,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:03,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:03,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:00:03,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:00:04,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:00:04,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:00:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:04,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:04,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:04,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746767592] [2024-11-13 15:00:04,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746767592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:04,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:04,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:04,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025177972] [2024-11-13 15:00:04,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:04,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:04,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:04,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:04,464 INFO L87 Difference]: Start difference. First operand 2243 states and 3000 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:10,676 INFO L93 Difference]: Finished difference Result 5041 states and 6658 transitions. [2024-11-13 15:00:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:10,683 INFO L225 Difference]: With dead ends: 5041 [2024-11-13 15:00:10,683 INFO L226 Difference]: Without dead ends: 2801 [2024-11-13 15:00:10,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:00:10,686 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 277 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:10,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 3169 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 15:00:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2024-11-13 15:00:10,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2223. [2024-11-13 15:00:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 2116 states have (on average 1.329867674858223) internal successors, (2814), 2122 states have internal predecessors, (2814), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:10,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2970 transitions. [2024-11-13 15:00:11,001 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2970 transitions. Word has length 140 [2024-11-13 15:00:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:11,001 INFO L471 AbstractCegarLoop]: Abstraction has 2223 states and 2970 transitions. [2024-11-13 15:00:11,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2970 transitions. [2024-11-13 15:00:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:11,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:11,005 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:11,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (116)] Ended with exit code 0 [2024-11-13 15:00:11,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:11,206 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:11,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1615001554, now seen corresponding path program 1 times [2024-11-13 15:00:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260953364] [2024-11-13 15:00:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:11,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:11,210 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:11,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2024-11-13 15:00:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:11,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:00:11,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:12,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:12,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:12,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 15:00:13,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:00:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:13,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:13,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:13,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260953364] [2024-11-13 15:00:13,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260953364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:13,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:13,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038378932] [2024-11-13 15:00:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:13,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:13,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:13,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:13,369 INFO L87 Difference]: Start difference. First operand 2223 states and 2970 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:17,787 INFO L93 Difference]: Finished difference Result 4978 states and 6587 transitions. [2024-11-13 15:00:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:17,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:17,795 INFO L225 Difference]: With dead ends: 4978 [2024-11-13 15:00:17,795 INFO L226 Difference]: Without dead ends: 2758 [2024-11-13 15:00:17,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:00:17,801 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 250 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:17,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 2286 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 15:00:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2024-11-13 15:00:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2221. [2024-11-13 15:00:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2114 states have (on average 1.3301797540208136) internal successors, (2812), 2120 states have internal predecessors, (2812), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 2968 transitions. [2024-11-13 15:00:18,099 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 2968 transitions. Word has length 140 [2024-11-13 15:00:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:18,100 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 2968 transitions. [2024-11-13 15:00:18,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 2968 transitions. [2024-11-13 15:00:18,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:18,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:18,102 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:18,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (117)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:18,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:18,303 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:18,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash 308226480, now seen corresponding path program 1 times [2024-11-13 15:00:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:18,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605934306] [2024-11-13 15:00:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:18,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:18,307 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:18,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Waiting until timeout for monitored process [2024-11-13 15:00:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:00:19,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:19,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:19,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:20,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 15:00:20,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:00:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:20,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:20,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:20,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605934306] [2024-11-13 15:00:20,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605934306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:20,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:20,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:20,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086869090] [2024-11-13 15:00:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:20,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:20,428 INFO L87 Difference]: Start difference. First operand 2221 states and 2968 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:24,729 INFO L93 Difference]: Finished difference Result 4968 states and 6576 transitions. [2024-11-13 15:00:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:24,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:24,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:24,735 INFO L225 Difference]: With dead ends: 4968 [2024-11-13 15:00:24,736 INFO L226 Difference]: Without dead ends: 2750 [2024-11-13 15:00:24,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:00:24,738 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 250 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:24,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 2503 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 15:00:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2024-11-13 15:00:25,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2239. [2024-11-13 15:00:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2132 states have (on average 1.3302063789868668) internal successors, (2836), 2138 states have internal predecessors, (2836), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2992 transitions. [2024-11-13 15:00:25,117 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2992 transitions. Word has length 140 [2024-11-13 15:00:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:25,118 INFO L471 AbstractCegarLoop]: Abstraction has 2239 states and 2992 transitions. [2024-11-13 15:00:25,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2992 transitions. [2024-11-13 15:00:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:25,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:25,120 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:25,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:25,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:25,321 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:25,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:25,321 INFO L85 PathProgramCache]: Analyzing trace with hash -509421970, now seen corresponding path program 1 times [2024-11-13 15:00:25,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:25,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311222852] [2024-11-13 15:00:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:25,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:25,323 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:25,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (119)] Waiting until timeout for monitored process [2024-11-13 15:00:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:00:26,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:26,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:26,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 15:00:26,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:00:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:26,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:26,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311222852] [2024-11-13 15:00:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311222852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:26,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:26,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476971252] [2024-11-13 15:00:26,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:26,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:26,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:26,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:26,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:26,904 INFO L87 Difference]: Start difference. First operand 2239 states and 2992 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:29,773 INFO L93 Difference]: Finished difference Result 4834 states and 6415 transitions. [2024-11-13 15:00:29,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:00:29,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:29,782 INFO L225 Difference]: With dead ends: 4834 [2024-11-13 15:00:29,782 INFO L226 Difference]: Without dead ends: 2598 [2024-11-13 15:00:29,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:00:29,784 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 174 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:29,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1793 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:00:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2024-11-13 15:00:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2225. [2024-11-13 15:00:30,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2118 states have (on average 1.3305004721435316) internal successors, (2818), 2124 states have internal predecessors, (2818), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2974 transitions. [2024-11-13 15:00:30,138 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2974 transitions. Word has length 140 [2024-11-13 15:00:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:30,139 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 2974 transitions. [2024-11-13 15:00:30,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2974 transitions. [2024-11-13 15:00:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:30,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:30,141 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:30,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (119)] Ended with exit code 0 [2024-11-13 15:00:30,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:30,342 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:30,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash -538815764, now seen corresponding path program 1 times [2024-11-13 15:00:30,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:30,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770486733] [2024-11-13 15:00:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:30,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:30,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:30,344 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:30,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2024-11-13 15:00:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:00:31,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:31,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:31,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-13 15:00:31,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:00:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:31,765 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:31,765 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:31,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770486733] [2024-11-13 15:00:31,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770486733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:31,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049662074] [2024-11-13 15:00:31,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:31,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:31,767 INFO L87 Difference]: Start difference. First operand 2225 states and 2974 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:34,341 INFO L93 Difference]: Finished difference Result 4728 states and 6268 transitions. [2024-11-13 15:00:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:00:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:34,346 INFO L225 Difference]: With dead ends: 4728 [2024-11-13 15:00:34,346 INFO L226 Difference]: Without dead ends: 2506 [2024-11-13 15:00:34,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:00:34,348 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 171 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:34,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1729 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 15:00:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-11-13 15:00:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2169. [2024-11-13 15:00:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2062 states have (on average 1.3263821532492726) internal successors, (2735), 2068 states have internal predecessors, (2735), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2891 transitions. [2024-11-13 15:00:34,643 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2891 transitions. Word has length 140 [2024-11-13 15:00:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 2169 states and 2891 transitions. [2024-11-13 15:00:34,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:34,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2891 transitions. [2024-11-13 15:00:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:34,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:34,645 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:34,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (120)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:34,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:34,846 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:34,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1772287726, now seen corresponding path program 1 times [2024-11-13 15:00:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:34,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917695236] [2024-11-13 15:00:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:34,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:34,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:34,849 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:34,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Waiting until timeout for monitored process [2024-11-13 15:00:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 15:00:35,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:35,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:00:36,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:36,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-13 15:00:36,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:00:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:37,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:37,020 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:37,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917695236] [2024-11-13 15:00:37,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917695236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:37,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:37,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:37,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339225266] [2024-11-13 15:00:37,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:37,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:37,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:37,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:37,022 INFO L87 Difference]: Start difference. First operand 2169 states and 2891 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:42,872 INFO L93 Difference]: Finished difference Result 5504 states and 7249 transitions. [2024-11-13 15:00:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:42,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:42,880 INFO L225 Difference]: With dead ends: 5504 [2024-11-13 15:00:42,880 INFO L226 Difference]: Without dead ends: 3338 [2024-11-13 15:00:42,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:00:42,882 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 453 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:42,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 2193 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 15:00:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2024-11-13 15:00:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 2187. [2024-11-13 15:00:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2080 states have (on average 1.3278846153846153) internal successors, (2762), 2086 states have internal predecessors, (2762), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2918 transitions. [2024-11-13 15:00:43,215 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2918 transitions. Word has length 140 [2024-11-13 15:00:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:43,216 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 2918 transitions. [2024-11-13 15:00:43,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2918 transitions. [2024-11-13 15:00:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:43,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:43,218 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:43,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:43,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:43,419 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:43,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash -599451536, now seen corresponding path program 1 times [2024-11-13 15:00:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632575996] [2024-11-13 15:00:43,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:43,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:43,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:43,422 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (122)] Waiting until timeout for monitored process [2024-11-13 15:00:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:44,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 15:00:44,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:44,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:00:44,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:00:45,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-13 15:00:45,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:00:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:45,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:45,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632575996] [2024-11-13 15:00:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632575996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:45,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242474625] [2024-11-13 15:00:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:45,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:45,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:45,524 INFO L87 Difference]: Start difference. First operand 2187 states and 2918 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:51,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:51,565 INFO L93 Difference]: Finished difference Result 5546 states and 7311 transitions. [2024-11-13 15:00:51,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:00:51,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:51,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:51,574 INFO L225 Difference]: With dead ends: 5546 [2024-11-13 15:00:51,574 INFO L226 Difference]: Without dead ends: 3362 [2024-11-13 15:00:51,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:00:51,576 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 436 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:51,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 2206 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 15:00:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2024-11-13 15:00:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 2225. [2024-11-13 15:00:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2118 states have (on average 1.3286118980169972) internal successors, (2814), 2124 states have internal predecessors, (2814), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2970 transitions. [2024-11-13 15:00:51,940 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2970 transitions. Word has length 140 [2024-11-13 15:00:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:51,940 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 2970 transitions. [2024-11-13 15:00:51,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2970 transitions. [2024-11-13 15:00:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:51,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:51,942 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:51,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (122)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:52,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:52,143 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:52,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:52,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1417099986, now seen corresponding path program 1 times [2024-11-13 15:00:52,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:52,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427591617] [2024-11-13 15:00:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:52,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:52,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:52,146 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:52,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2024-11-13 15:00:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:52,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 15:00:52,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:53,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:00:53,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:00:53,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:00:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:53,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:53,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:53,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427591617] [2024-11-13 15:00:53,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427591617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:53,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:53,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:53,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272730094] [2024-11-13 15:00:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:53,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:53,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:53,794 INFO L87 Difference]: Start difference. First operand 2225 states and 2970 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:57,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:57,589 INFO L93 Difference]: Finished difference Result 5412 states and 7154 transitions. [2024-11-13 15:00:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:00:57,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:00:57,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:57,596 INFO L225 Difference]: With dead ends: 5412 [2024-11-13 15:00:57,596 INFO L226 Difference]: Without dead ends: 3190 [2024-11-13 15:00:57,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:00:57,599 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 361 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:57,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1587 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 15:00:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2024-11-13 15:00:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 2225. [2024-11-13 15:00:57,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2118 states have (on average 1.3305004721435316) internal successors, (2818), 2124 states have internal predecessors, (2818), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:00:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2974 transitions. [2024-11-13 15:00:57,910 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2974 transitions. Word has length 140 [2024-11-13 15:00:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:57,910 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 2974 transitions. [2024-11-13 15:00:57,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:00:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2974 transitions. [2024-11-13 15:00:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:00:57,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:57,912 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:57,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (123)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:58,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:58,112 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:58,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:58,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1446493780, now seen corresponding path program 1 times [2024-11-13 15:00:58,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:58,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077743357] [2024-11-13 15:00:58,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:58,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:58,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:58,115 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Waiting until timeout for monitored process [2024-11-13 15:00:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:58,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 15:00:58,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:58,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:00:59,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:00:59,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:00:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:00:59,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:00:59,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:59,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077743357] [2024-11-13 15:00:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077743357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:59,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952764696] [2024-11-13 15:00:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:59,691 INFO L87 Difference]: Start difference. First operand 2225 states and 2974 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:03,753 INFO L93 Difference]: Finished difference Result 5318 states and 7027 transitions. [2024-11-13 15:01:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:01:03,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:03,760 INFO L225 Difference]: With dead ends: 5318 [2024-11-13 15:01:03,761 INFO L226 Difference]: Without dead ends: 3096 [2024-11-13 15:01:03,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:01:03,762 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 357 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:03,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1642 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:01:03,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2024-11-13 15:01:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2181. [2024-11-13 15:01:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2074 states have (on average 1.3269045323047253) internal successors, (2752), 2080 states have internal predecessors, (2752), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2908 transitions. [2024-11-13 15:01:04,075 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2908 transitions. Word has length 140 [2024-11-13 15:01:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 2908 transitions. [2024-11-13 15:01:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2908 transitions. [2024-11-13 15:01:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:04,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:04,077 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:04,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:04,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:04,278 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:04,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:04,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1841728435, now seen corresponding path program 1 times [2024-11-13 15:01:04,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:04,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111334955] [2024-11-13 15:01:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:04,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:04,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:04,281 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:04,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (125)] Waiting until timeout for monitored process [2024-11-13 15:01:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:05,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 15:01:05,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:05,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:06,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 15:01:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:06,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:06,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111334955] [2024-11-13 15:01:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111334955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:06,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:06,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-13 15:01:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478033529] [2024-11-13 15:01:06,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:06,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 15:01:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 15:01:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:01:06,476 INFO L87 Difference]: Start difference. First operand 2181 states and 2908 transitions. Second operand has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:11,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:11,664 INFO L93 Difference]: Finished difference Result 5214 states and 6848 transitions. [2024-11-13 15:01:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:01:11,665 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:11,674 INFO L225 Difference]: With dead ends: 5214 [2024-11-13 15:01:11,674 INFO L226 Difference]: Without dead ends: 3036 [2024-11-13 15:01:11,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:01:11,678 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 440 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:11,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 2155 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 15:01:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2024-11-13 15:01:12,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2205. [2024-11-13 15:01:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 2098 states have (on average 1.32697807435653) internal successors, (2784), 2104 states have internal predecessors, (2784), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2940 transitions. [2024-11-13 15:01:12,197 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2940 transitions. Word has length 140 [2024-11-13 15:01:12,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:12,197 INFO L471 AbstractCegarLoop]: Abstraction has 2205 states and 2940 transitions. [2024-11-13 15:01:12,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2940 transitions. [2024-11-13 15:01:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:12,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:12,199 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:12,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (125)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:12,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:12,400 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:12,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:12,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1682539409, now seen corresponding path program 1 times [2024-11-13 15:01:12,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:12,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094204675] [2024-11-13 15:01:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:12,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:12,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:12,403 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:12,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2024-11-13 15:01:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:13,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:01:13,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:13,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:13,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:01:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:13,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:13,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094204675] [2024-11-13 15:01:13,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094204675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:13,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:13,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 15:01:13,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648609415] [2024-11-13 15:01:13,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:13,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:01:13,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:01:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:01:13,809 INFO L87 Difference]: Start difference. First operand 2205 states and 2940 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:16,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:16,452 INFO L93 Difference]: Finished difference Result 4824 states and 6364 transitions. [2024-11-13 15:01:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:01:16,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:16,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:16,459 INFO L225 Difference]: With dead ends: 4824 [2024-11-13 15:01:16,459 INFO L226 Difference]: Without dead ends: 2622 [2024-11-13 15:01:16,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:01:16,461 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 219 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:16,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1446 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 15:01:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2024-11-13 15:01:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2205. [2024-11-13 15:01:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 2098 states have (on average 1.3260247855100096) internal successors, (2782), 2104 states have internal predecessors, (2782), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2938 transitions. [2024-11-13 15:01:16,789 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2938 transitions. Word has length 140 [2024-11-13 15:01:16,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:16,789 INFO L471 AbstractCegarLoop]: Abstraction has 2205 states and 2938 transitions. [2024-11-13 15:01:16,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2938 transitions. [2024-11-13 15:01:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:16,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:16,792 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:16,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (126)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:16,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:16,992 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:16,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1705171663, now seen corresponding path program 1 times [2024-11-13 15:01:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:16,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842674555] [2024-11-13 15:01:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:16,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:16,996 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:16,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Waiting until timeout for monitored process [2024-11-13 15:01:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:17,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:01:17,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:17,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:18,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:01:18,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2024-11-13 15:01:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:18,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:18,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842674555] [2024-11-13 15:01:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842674555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:18,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:18,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:01:18,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785119736] [2024-11-13 15:01:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:18,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:01:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:01:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:01:18,602 INFO L87 Difference]: Start difference. First operand 2205 states and 2938 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:22,707 INFO L93 Difference]: Finished difference Result 5050 states and 6643 transitions. [2024-11-13 15:01:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:01:22,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:22,714 INFO L225 Difference]: With dead ends: 5050 [2024-11-13 15:01:22,714 INFO L226 Difference]: Without dead ends: 2848 [2024-11-13 15:01:22,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:01:22,717 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 297 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:22,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1894 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:01:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2024-11-13 15:01:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2189. [2024-11-13 15:01:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2189 states, 2082 states have (on average 1.3256484149855907) internal successors, (2760), 2088 states have internal predecessors, (2760), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2916 transitions. [2024-11-13 15:01:23,187 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2916 transitions. Word has length 140 [2024-11-13 15:01:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:23,187 INFO L471 AbstractCegarLoop]: Abstraction has 2189 states and 2916 transitions. [2024-11-13 15:01:23,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2916 transitions. [2024-11-13 15:01:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:23,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:23,191 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:23,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:23,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:23,393 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:23,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1892883759, now seen corresponding path program 1 times [2024-11-13 15:01:23,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:23,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293319622] [2024-11-13 15:01:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:23,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:23,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:23,401 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:23,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (128)] Waiting until timeout for monitored process [2024-11-13 15:01:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:24,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 15:01:24,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:24,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:24,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:24,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293319622] [2024-11-13 15:01:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293319622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:24,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:24,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:01:24,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209142143] [2024-11-13 15:01:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:24,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:01:24,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:01:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:01:24,934 INFO L87 Difference]: Start difference. First operand 2189 states and 2916 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:27,435 INFO L93 Difference]: Finished difference Result 4756 states and 6266 transitions. [2024-11-13 15:01:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:01:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:27,443 INFO L225 Difference]: With dead ends: 4756 [2024-11-13 15:01:27,443 INFO L226 Difference]: Without dead ends: 2564 [2024-11-13 15:01:27,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:01:27,446 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 212 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:27,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1517 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:01:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-11-13 15:01:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2151. [2024-11-13 15:01:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2044 states have (on average 1.3238747553816046) internal successors, (2706), 2050 states have internal predecessors, (2706), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2862 transitions. [2024-11-13 15:01:27,799 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2862 transitions. Word has length 140 [2024-11-13 15:01:27,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:27,799 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 2862 transitions. [2024-11-13 15:01:27,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2862 transitions. [2024-11-13 15:01:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:27,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:27,801 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:27,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (128)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:28,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:28,001 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:28,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2116488049, now seen corresponding path program 1 times [2024-11-13 15:01:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:28,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385345872] [2024-11-13 15:01:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:28,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:28,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:28,005 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:28,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2024-11-13 15:01:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:28,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:01:28,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:28,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:29,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-13 15:01:29,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:01:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:29,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:29,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385345872] [2024-11-13 15:01:29,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385345872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:29,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:29,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:01:29,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651950517] [2024-11-13 15:01:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:29,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:01:29,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:01:29,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:01:29,680 INFO L87 Difference]: Start difference. First operand 2151 states and 2862 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:35,074 INFO L93 Difference]: Finished difference Result 4934 states and 6479 transitions. [2024-11-13 15:01:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:01:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:35,080 INFO L225 Difference]: With dead ends: 4934 [2024-11-13 15:01:35,081 INFO L226 Difference]: Without dead ends: 2786 [2024-11-13 15:01:35,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:01:35,082 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 278 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:35,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 2873 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 15:01:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2024-11-13 15:01:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2131. [2024-11-13 15:01:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2024 states have (on average 1.3221343873517786) internal successors, (2676), 2030 states have internal predecessors, (2676), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2832 transitions. [2024-11-13 15:01:35,410 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2832 transitions. Word has length 140 [2024-11-13 15:01:35,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:35,410 INFO L471 AbstractCegarLoop]: Abstraction has 2131 states and 2832 transitions. [2024-11-13 15:01:35,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:35,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2832 transitions. [2024-11-13 15:01:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:35,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:35,412 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:35,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (129)] Ended with exit code 0 [2024-11-13 15:01:35,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:35,613 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:35,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:35,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1863148048, now seen corresponding path program 1 times [2024-11-13 15:01:35,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:35,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226214448] [2024-11-13 15:01:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:35,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:35,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:35,617 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:35,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Waiting until timeout for monitored process [2024-11-13 15:01:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:36,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:01:36,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:37,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 15:01:37,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:01:38,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-13 15:01:38,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:01:39,087 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 15:01:39,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:01:39,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:40,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:01:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:40,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:40,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226214448] [2024-11-13 15:01:40,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226214448] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:40,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:01:40,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 27 [2024-11-13 15:01:40,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757108604] [2024-11-13 15:01:40,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:40,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:01:40,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:40,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:01:40,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:01:40,333 INFO L87 Difference]: Start difference. First operand 2131 states and 2832 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:43,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:43,243 INFO L93 Difference]: Finished difference Result 4969 states and 6544 transitions. [2024-11-13 15:01:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:01:43,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:43,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:43,250 INFO L225 Difference]: With dead ends: 4969 [2024-11-13 15:01:43,250 INFO L226 Difference]: Without dead ends: 2841 [2024-11-13 15:01:43,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=141, Invalid=851, Unknown=0, NotChecked=0, Total=992 [2024-11-13 15:01:43,252 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 328 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:43,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1359 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 15:01:43,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2024-11-13 15:01:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2125. [2024-11-13 15:01:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2018 states have (on average 1.3230921704658076) internal successors, (2670), 2024 states have internal predecessors, (2670), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2826 transitions. [2024-11-13 15:01:43,619 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2826 transitions. Word has length 140 [2024-11-13 15:01:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:43,619 INFO L471 AbstractCegarLoop]: Abstraction has 2125 states and 2826 transitions. [2024-11-13 15:01:43,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:43,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2826 transitions. [2024-11-13 15:01:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:43,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:43,621 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:43,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:43,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:43,822 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:43,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:43,822 INFO L85 PathProgramCache]: Analyzing trace with hash 60079986, now seen corresponding path program 1 times [2024-11-13 15:01:43,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:43,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336108761] [2024-11-13 15:01:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:43,825 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:43,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (131)] Waiting until timeout for monitored process [2024-11-13 15:01:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:44,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:01:44,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:45,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 15:01:46,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:01:46,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-13 15:01:47,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:01:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 15:01:47,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:01:47,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:01:48,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:01:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:48,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:48,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336108761] [2024-11-13 15:01:48,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336108761] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:48,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:01:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 27 [2024-11-13 15:01:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968364343] [2024-11-13 15:01:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:48,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:01:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:01:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:01:48,662 INFO L87 Difference]: Start difference. First operand 2125 states and 2826 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:51,894 INFO L93 Difference]: Finished difference Result 4997 states and 6591 transitions. [2024-11-13 15:01:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:01:51,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:51,901 INFO L225 Difference]: With dead ends: 4997 [2024-11-13 15:01:51,901 INFO L226 Difference]: Without dead ends: 2875 [2024-11-13 15:01:51,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=141, Invalid=851, Unknown=0, NotChecked=0, Total=992 [2024-11-13 15:01:51,902 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 436 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:51,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1250 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:01:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2024-11-13 15:01:52,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2179. [2024-11-13 15:01:52,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2072 states have (on average 1.3233590733590734) internal successors, (2742), 2078 states have internal predecessors, (2742), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2898 transitions. [2024-11-13 15:01:52,257 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2898 transitions. Word has length 140 [2024-11-13 15:01:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:52,257 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 2898 transitions. [2024-11-13 15:01:52,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2898 transitions. [2024-11-13 15:01:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:52,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:52,260 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:52,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (131)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:52,460 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:52,461 INFO L85 PathProgramCache]: Analyzing trace with hash -757568464, now seen corresponding path program 1 times [2024-11-13 15:01:52,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:52,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293480658] [2024-11-13 15:01:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:52,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:52,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:52,463 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:52,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (132)] Waiting until timeout for monitored process [2024-11-13 15:01:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:53,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:01:53,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:53,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 15:01:54,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 15:01:55,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:01:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 15:01:55,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:01:55,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:01:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:01:55,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:55,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293480658] [2024-11-13 15:01:55,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293480658] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:55,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:01:55,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-11-13 15:01:55,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827355934] [2024-11-13 15:01:55,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:55,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:01:55,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:55,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:01:55,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:01:55,877 INFO L87 Difference]: Start difference. First operand 2179 states and 2898 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:57,211 INFO L93 Difference]: Finished difference Result 4761 states and 6304 transitions. [2024-11-13 15:01:57,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:01:57,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:01:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:57,218 INFO L225 Difference]: With dead ends: 4761 [2024-11-13 15:01:57,218 INFO L226 Difference]: Without dead ends: 2585 [2024-11-13 15:01:57,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:01:57,220 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 80 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:57,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 970 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:01:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2024-11-13 15:01:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2137. [2024-11-13 15:01:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2030 states have (on average 1.3241379310344827) internal successors, (2688), 2036 states have internal predecessors, (2688), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:01:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 2844 transitions. [2024-11-13 15:01:57,574 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 2844 transitions. Word has length 140 [2024-11-13 15:01:57,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:57,574 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 2844 transitions. [2024-11-13 15:01:57,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:01:57,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 2844 transitions. [2024-11-13 15:01:57,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:01:57,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:57,576 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:57,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (132)] Ended with exit code 0 [2024-11-13 15:01:57,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:57,777 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:57,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:57,777 INFO L85 PathProgramCache]: Analyzing trace with hash -786962258, now seen corresponding path program 1 times [2024-11-13 15:01:57,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:57,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432000676] [2024-11-13 15:01:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:57,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:01:57,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:57,782 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:01:57,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (133)] Waiting until timeout for monitored process [2024-11-13 15:01:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:58,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:01:58,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:59,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 15:02:00,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 15:02:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 15:02:00,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:00,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-11-13 15:02:01,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:02:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:01,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:01,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432000676] [2024-11-13 15:02:01,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432000676] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:02:01,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:02:01,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 25 [2024-11-13 15:02:01,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44889872] [2024-11-13 15:02:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:01,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:02:01,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:01,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:02:01,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:02:01,588 INFO L87 Difference]: Start difference. First operand 2137 states and 2844 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:05,403 INFO L93 Difference]: Finished difference Result 4943 states and 6503 transitions. [2024-11-13 15:02:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:02:05,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:02:05,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:05,411 INFO L225 Difference]: With dead ends: 4943 [2024-11-13 15:02:05,411 INFO L226 Difference]: Without dead ends: 2809 [2024-11-13 15:02:05,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 15:02:05,413 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 374 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:05,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1560 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:02:05,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2024-11-13 15:02:05,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2185. [2024-11-13 15:02:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 2078 states have (on average 1.3195380173243503) internal successors, (2742), 2084 states have internal predecessors, (2742), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2898 transitions. [2024-11-13 15:02:05,787 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2898 transitions. Word has length 140 [2024-11-13 15:02:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:05,788 INFO L471 AbstractCegarLoop]: Abstraction has 2185 states and 2898 transitions. [2024-11-13 15:02:05,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2898 transitions. [2024-11-13 15:02:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:02:05,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:05,790 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:05,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (133)] Ended with exit code 0 [2024-11-13 15:02:05,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:05,991 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:05,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash 233996654, now seen corresponding path program 1 times [2024-11-13 15:02:05,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:05,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493088865] [2024-11-13 15:02:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:05,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:05,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:05,994 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (134)] Waiting until timeout for monitored process [2024-11-13 15:02:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:06,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:02:06,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:07,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-13 15:02:08,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 15:02:08,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 5 proven. 207 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 15:02:08,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:08,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:02:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:09,020 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493088865] [2024-11-13 15:02:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493088865] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:02:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:02:09,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-11-13 15:02:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871357688] [2024-11-13 15:02:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:09,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:02:09,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:02:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:02:09,021 INFO L87 Difference]: Start difference. First operand 2185 states and 2898 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:10,362 INFO L93 Difference]: Finished difference Result 4511 states and 5943 transitions. [2024-11-13 15:02:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:02:10,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-11-13 15:02:10,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:10,369 INFO L225 Difference]: With dead ends: 4511 [2024-11-13 15:02:10,369 INFO L226 Difference]: Without dead ends: 2329 [2024-11-13 15:02:10,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:02:10,371 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 154 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:10,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 837 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:02:10,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-13 15:02:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1993. [2024-11-13 15:02:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1886 states have (on average 1.3112407211028632) internal successors, (2473), 1892 states have internal predecessors, (2473), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2629 transitions. [2024-11-13 15:02:10,735 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2629 transitions. Word has length 140 [2024-11-13 15:02:10,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:10,735 INFO L471 AbstractCegarLoop]: Abstraction has 1993 states and 2629 transitions. [2024-11-13 15:02:10,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2629 transitions. [2024-11-13 15:02:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:10,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:10,737 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:10,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (134)] Ended with exit code 0 [2024-11-13 15:02:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:10,938 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:10,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1808066804, now seen corresponding path program 1 times [2024-11-13 15:02:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:10,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016102969] [2024-11-13 15:02:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:10,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:10,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:10,941 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:10,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (135)] Waiting until timeout for monitored process [2024-11-13 15:02:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:11,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 15:02:11,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:11,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:11,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:12,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:12,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:12,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016102969] [2024-11-13 15:02:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016102969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:12,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:12,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:02:12,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170961089] [2024-11-13 15:02:12,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:12,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:02:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:12,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:02:12,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:02:12,558 INFO L87 Difference]: Start difference. First operand 1993 states and 2629 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:16,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:16,372 INFO L93 Difference]: Finished difference Result 4757 states and 6179 transitions. [2024-11-13 15:02:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:02:16,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:16,379 INFO L225 Difference]: With dead ends: 4757 [2024-11-13 15:02:16,379 INFO L226 Difference]: Without dead ends: 2767 [2024-11-13 15:02:16,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:02:16,381 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 282 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:16,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1590 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 15:02:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2024-11-13 15:02:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1997. [2024-11-13 15:02:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1890 states have (on average 1.3105820105820105) internal successors, (2477), 1896 states have internal predecessors, (2477), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:16,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2633 transitions. [2024-11-13 15:02:16,743 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2633 transitions. Word has length 142 [2024-11-13 15:02:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:16,744 INFO L471 AbstractCegarLoop]: Abstraction has 1997 states and 2633 transitions. [2024-11-13 15:02:16,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2633 transitions. [2024-11-13 15:02:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:16,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:16,746 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:16,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (135)] Ended with exit code 0 [2024-11-13 15:02:16,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:16,946 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:16,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1785434550, now seen corresponding path program 1 times [2024-11-13 15:02:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:16,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312146537] [2024-11-13 15:02:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:16,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:16,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:16,949 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:16,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (136)] Waiting until timeout for monitored process [2024-11-13 15:02:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:17,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 15:02:17,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:17,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:17,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:18,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:18,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:18,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:18,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312146537] [2024-11-13 15:02:18,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312146537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:18,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:18,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:02:18,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907810311] [2024-11-13 15:02:18,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:18,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:02:18,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:02:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:02:18,890 INFO L87 Difference]: Start difference. First operand 1997 states and 2633 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:24,160 INFO L93 Difference]: Finished difference Result 5065 states and 6566 transitions. [2024-11-13 15:02:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:02:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:24,168 INFO L225 Difference]: With dead ends: 5065 [2024-11-13 15:02:24,169 INFO L226 Difference]: Without dead ends: 3071 [2024-11-13 15:02:24,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:02:24,171 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 407 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:24,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1805 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:02:24,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2024-11-13 15:02:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2005. [2024-11-13 15:02:24,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1898 states have (on average 1.3103266596417282) internal successors, (2487), 1904 states have internal predecessors, (2487), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:24,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2643 transitions. [2024-11-13 15:02:24,548 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2643 transitions. Word has length 142 [2024-11-13 15:02:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:24,548 INFO L471 AbstractCegarLoop]: Abstraction has 2005 states and 2643 transitions. [2024-11-13 15:02:24,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:24,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2643 transitions. [2024-11-13 15:02:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:24,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:24,550 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:24,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (136)] Forceful destruction successful, exit code 0 [2024-11-13 15:02:24,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:24,751 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:24,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1002043190, now seen corresponding path program 1 times [2024-11-13 15:02:24,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:24,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058771380] [2024-11-13 15:02:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:24,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:24,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:24,754 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:24,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (137)] Waiting until timeout for monitored process [2024-11-13 15:02:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:25,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:02:25,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:25,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:25,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:25,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:26,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:02:26,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 15:02:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:26,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:26,493 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:26,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058771380] [2024-11-13 15:02:26,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058771380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:26,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:26,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:02:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388296709] [2024-11-13 15:02:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:26,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:02:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:02:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:02:26,495 INFO L87 Difference]: Start difference. First operand 2005 states and 2643 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:31,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:31,555 INFO L93 Difference]: Finished difference Result 5051 states and 6544 transitions. [2024-11-13 15:02:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:02:31,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:31,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:31,562 INFO L225 Difference]: With dead ends: 5051 [2024-11-13 15:02:31,563 INFO L226 Difference]: Without dead ends: 3049 [2024-11-13 15:02:31,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:02:31,565 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 370 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:31,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 2027 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:02:31,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2024-11-13 15:02:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2005. [2024-11-13 15:02:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1898 states have (on average 1.30927291886196) internal successors, (2485), 1904 states have internal predecessors, (2485), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2641 transitions. [2024-11-13 15:02:31,970 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2641 transitions. Word has length 142 [2024-11-13 15:02:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:31,970 INFO L471 AbstractCegarLoop]: Abstraction has 2005 states and 2641 transitions. [2024-11-13 15:02:31,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2641 transitions. [2024-11-13 15:02:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:31,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:31,973 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:31,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (137)] Forceful destruction successful, exit code 0 [2024-11-13 15:02:32,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:32,173 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:32,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2082826418, now seen corresponding path program 1 times [2024-11-13 15:02:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670588632] [2024-11-13 15:02:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:32,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:32,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:32,176 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:32,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (138)] Waiting until timeout for monitored process [2024-11-13 15:02:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:33,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:02:33,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:33,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:33,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:33,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:33,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 15:02:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:02:34,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:34,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2024-11-13 15:02:34,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-13 15:02:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:35,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:35,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670588632] [2024-11-13 15:02:35,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670588632] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:02:35,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:02:35,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2024-11-13 15:02:35,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379803818] [2024-11-13 15:02:35,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:35,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:02:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:02:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:02:35,041 INFO L87 Difference]: Start difference. First operand 2005 states and 2641 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:38,606 INFO L93 Difference]: Finished difference Result 5441 states and 7169 transitions. [2024-11-13 15:02:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:02:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:38,613 INFO L225 Difference]: With dead ends: 5441 [2024-11-13 15:02:38,613 INFO L226 Difference]: Without dead ends: 3439 [2024-11-13 15:02:38,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:02:38,615 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 256 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:38,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1700 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 15:02:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-11-13 15:02:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 2131. [2024-11-13 15:02:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 2024 states have (on average 1.3127470355731226) internal successors, (2657), 2030 states have internal predecessors, (2657), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2813 transitions. [2024-11-13 15:02:39,018 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2813 transitions. Word has length 142 [2024-11-13 15:02:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 2131 states and 2813 transitions. [2024-11-13 15:02:39,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2813 transitions. [2024-11-13 15:02:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:39,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:39,020 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:39,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (138)] Ended with exit code 0 [2024-11-13 15:02:39,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:39,221 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:39,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1299435058, now seen corresponding path program 1 times [2024-11-13 15:02:39,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:39,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054268095] [2024-11-13 15:02:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:39,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:39,227 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:39,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (139)] Waiting until timeout for monitored process [2024-11-13 15:02:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:40,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:02:40,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:40,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:40,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:40,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:02:40,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 15:02:40,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:02:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:41,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:41,017 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:41,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054268095] [2024-11-13 15:02:41,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054268095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:41,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:41,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:02:41,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295324655] [2024-11-13 15:02:41,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:41,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:02:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:41,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:02:41,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:02:41,019 INFO L87 Difference]: Start difference. First operand 2131 states and 2813 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:47,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:47,110 INFO L93 Difference]: Finished difference Result 5283 states and 6858 transitions. [2024-11-13 15:02:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:02:47,111 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:47,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:47,116 INFO L225 Difference]: With dead ends: 5283 [2024-11-13 15:02:47,116 INFO L226 Difference]: Without dead ends: 3155 [2024-11-13 15:02:47,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:02:47,118 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 356 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:47,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 2509 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 15:02:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2024-11-13 15:02:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 2109. [2024-11-13 15:02:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2002 states have (on average 1.312187812187812) internal successors, (2627), 2008 states have internal predecessors, (2627), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2783 transitions. [2024-11-13 15:02:47,492 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2783 transitions. Word has length 142 [2024-11-13 15:02:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:47,492 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 2783 transitions. [2024-11-13 15:02:47,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2783 transitions. [2024-11-13 15:02:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:47,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:47,494 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:47,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (139)] Ended with exit code 0 [2024-11-13 15:02:47,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:47,695 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:47,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1336432466, now seen corresponding path program 1 times [2024-11-13 15:02:47,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:47,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436248885] [2024-11-13 15:02:47,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:47,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:47,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:47,698 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:47,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (140)] Waiting until timeout for monitored process [2024-11-13 15:02:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:48,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 15:02:48,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:48,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:48,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:48,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:02:49,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 15:02:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:49,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:49,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:49,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436248885] [2024-11-13 15:02:49,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436248885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:49,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:49,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:02:49,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340743924] [2024-11-13 15:02:49,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:49,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:02:49,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:49,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:02:49,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:02:49,690 INFO L87 Difference]: Start difference. First operand 2109 states and 2783 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:54,758 INFO L93 Difference]: Finished difference Result 5063 states and 6627 transitions. [2024-11-13 15:02:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:02:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:54,766 INFO L225 Difference]: With dead ends: 5063 [2024-11-13 15:02:54,766 INFO L226 Difference]: Without dead ends: 2957 [2024-11-13 15:02:54,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:02:54,768 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 405 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:54,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1927 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:02:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2024-11-13 15:02:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2133. [2024-11-13 15:02:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2026 states have (on average 1.313919052319842) internal successors, (2662), 2032 states have internal predecessors, (2662), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:02:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 2818 transitions. [2024-11-13 15:02:55,198 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 2818 transitions. Word has length 142 [2024-11-13 15:02:55,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:55,198 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 2818 transitions. [2024-11-13 15:02:55,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 2818 transitions. [2024-11-13 15:02:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:02:55,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:55,200 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:02:55,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (140)] Ended with exit code 0 [2024-11-13 15:02:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:55,401 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:55,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1510349134, now seen corresponding path program 1 times [2024-11-13 15:02:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350041464] [2024-11-13 15:02:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:55,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:55,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:55,404 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:55,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2024-11-13 15:02:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:56,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 15:02:56,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:56,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:02:56,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:02:56,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:02:57,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:02:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:02:57,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:02:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:02:58,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:58,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350041464] [2024-11-13 15:02:58,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350041464] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:02:58,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:02:58,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-13 15:02:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665694306] [2024-11-13 15:02:58,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:58,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:02:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:02:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:02:58,116 INFO L87 Difference]: Start difference. First operand 2133 states and 2818 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:02:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:59,750 INFO L93 Difference]: Finished difference Result 5501 states and 7260 transitions. [2024-11-13 15:02:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:02:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:02:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:59,759 INFO L225 Difference]: With dead ends: 5501 [2024-11-13 15:02:59,759 INFO L226 Difference]: Without dead ends: 3371 [2024-11-13 15:02:59,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:02:59,762 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 253 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:59,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 945 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:02:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3371 states. [2024-11-13 15:03:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3371 to 2495. [2024-11-13 15:03:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2388 states have (on average 1.3090452261306533) internal successors, (3126), 2394 states have internal predecessors, (3126), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3282 transitions. [2024-11-13 15:03:00,202 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3282 transitions. Word has length 142 [2024-11-13 15:03:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:00,202 INFO L471 AbstractCegarLoop]: Abstraction has 2495 states and 3282 transitions. [2024-11-13 15:03:00,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3282 transitions. [2024-11-13 15:03:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:00,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:00,204 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:00,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Forceful destruction successful, exit code 0 [2024-11-13 15:03:00,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:00,405 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:00,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1035306796, now seen corresponding path program 1 times [2024-11-13 15:03:00,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:00,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394030381] [2024-11-13 15:03:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:00,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:00,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:00,408 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:00,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (142)] Waiting until timeout for monitored process [2024-11-13 15:03:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:01,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 15:03:01,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:01,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:01,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:01,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:02,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 15:03:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:03,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:03:03,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:03,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394030381] [2024-11-13 15:03:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394030381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:03,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 15:03:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174449652] [2024-11-13 15:03:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:03,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:03:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:03,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:03:03,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:03:03,048 INFO L87 Difference]: Start difference. First operand 2495 states and 3282 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:10,488 INFO L93 Difference]: Finished difference Result 5991 states and 7805 transitions. [2024-11-13 15:03:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:03:10,489 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:10,496 INFO L225 Difference]: With dead ends: 5991 [2024-11-13 15:03:10,496 INFO L226 Difference]: Without dead ends: 3499 [2024-11-13 15:03:10,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:03:10,498 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 479 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:10,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 2560 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 15:03:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2024-11-13 15:03:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 2523. [2024-11-13 15:03:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2416 states have (on average 1.3087748344370862) internal successors, (3162), 2422 states have internal predecessors, (3162), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3318 transitions. [2024-11-13 15:03:10,938 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3318 transitions. Word has length 142 [2024-11-13 15:03:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:10,938 INFO L471 AbstractCegarLoop]: Abstraction has 2523 states and 3318 transitions. [2024-11-13 15:03:10,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3318 transitions. [2024-11-13 15:03:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:10,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:10,941 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:10,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (142)] Ended with exit code 0 [2024-11-13 15:03:11,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:11,142 INFO L396 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:11,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:11,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1882349040, now seen corresponding path program 1 times [2024-11-13 15:03:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:11,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259639535] [2024-11-13 15:03:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:11,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:11,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:11,145 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:11,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (143)] Waiting until timeout for monitored process [2024-11-13 15:03:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:12,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 15:03:12,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:12,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:12,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:12,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:13,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:03:13,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:03:13,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:03:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:13,890 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:03:13,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259639535] [2024-11-13 15:03:13,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259639535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:13,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:13,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 15:03:13,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424855253] [2024-11-13 15:03:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:13,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:03:13,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:03:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:03:13,891 INFO L87 Difference]: Start difference. First operand 2523 states and 3318 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:23,388 INFO L93 Difference]: Finished difference Result 6059 states and 7895 transitions. [2024-11-13 15:03:23,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:03:23,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:23,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:23,398 INFO L225 Difference]: With dead ends: 6059 [2024-11-13 15:03:23,398 INFO L226 Difference]: Without dead ends: 3539 [2024-11-13 15:03:23,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:03:23,400 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 488 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:23,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 2975 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-13 15:03:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2024-11-13 15:03:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 2523. [2024-11-13 15:03:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2416 states have (on average 1.3087748344370862) internal successors, (3162), 2422 states have internal predecessors, (3162), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3318 transitions. [2024-11-13 15:03:23,852 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3318 transitions. Word has length 142 [2024-11-13 15:03:23,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:23,853 INFO L471 AbstractCegarLoop]: Abstraction has 2523 states and 3318 transitions. [2024-11-13 15:03:23,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:23,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3318 transitions. [2024-11-13 15:03:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:23,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:23,855 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:23,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (143)] Forceful destruction successful, exit code 0 [2024-11-13 15:03:24,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:24,057 INFO L396 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:24,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1487716880, now seen corresponding path program 1 times [2024-11-13 15:03:24,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262524976] [2024-11-13 15:03:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:24,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:24,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:24,060 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:24,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2024-11-13 15:03:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:24,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 15:03:24,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:25,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:25,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:25,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:26,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-13 15:03:26,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-13 15:03:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:03:26,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:27,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262524976] [2024-11-13 15:03:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262524976] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:03:27,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:03:27,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-13 15:03:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134024081] [2024-11-13 15:03:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:27,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:03:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:03:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:03:27,250 INFO L87 Difference]: Start difference. First operand 2523 states and 3318 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:28,934 INFO L93 Difference]: Finished difference Result 6125 states and 8052 transitions. [2024-11-13 15:03:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:03:28,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:28,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:28,944 INFO L225 Difference]: With dead ends: 6125 [2024-11-13 15:03:28,944 INFO L226 Difference]: Without dead ends: 3605 [2024-11-13 15:03:28,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:03:28,947 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 232 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:28,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 830 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:03:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2024-11-13 15:03:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 2453. [2024-11-13 15:03:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2346 states have (on average 1.3069053708439897) internal successors, (3066), 2352 states have internal predecessors, (3066), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3222 transitions. [2024-11-13 15:03:29,411 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3222 transitions. Word has length 142 [2024-11-13 15:03:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:29,411 INFO L471 AbstractCegarLoop]: Abstraction has 2453 states and 3222 transitions. [2024-11-13 15:03:29,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3222 transitions. [2024-11-13 15:03:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:29,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:29,415 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:29,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Ended with exit code 0 [2024-11-13 15:03:29,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:29,616 INFO L396 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:29,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:29,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1611192080, now seen corresponding path program 1 times [2024-11-13 15:03:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775015718] [2024-11-13 15:03:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:29,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:29,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:29,621 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:29,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (145)] Waiting until timeout for monitored process [2024-11-13 15:03:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:30,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:03:30,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:30,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:30,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:30,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:31,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2024-11-13 15:03:31,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:03:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:03:31,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:32,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775015718] [2024-11-13 15:03:32,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775015718] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:03:32,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:03:32,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-13 15:03:32,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299550799] [2024-11-13 15:03:32,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:32,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:03:32,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:32,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:03:32,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:03:32,259 INFO L87 Difference]: Start difference. First operand 2453 states and 3222 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:33,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:33,780 INFO L93 Difference]: Finished difference Result 5451 states and 7164 transitions. [2024-11-13 15:03:33,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:03:33,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:33,787 INFO L225 Difference]: With dead ends: 5451 [2024-11-13 15:03:33,787 INFO L226 Difference]: Without dead ends: 3001 [2024-11-13 15:03:33,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:03:33,789 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 180 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:33,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 764 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:03:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2024-11-13 15:03:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2429. [2024-11-13 15:03:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2322 states have (on average 1.302325581395349) internal successors, (3024), 2328 states have internal predecessors, (3024), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3180 transitions. [2024-11-13 15:03:34,229 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3180 transitions. Word has length 142 [2024-11-13 15:03:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:34,229 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3180 transitions. [2024-11-13 15:03:34,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3180 transitions. [2024-11-13 15:03:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:34,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:34,232 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:34,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (145)] Ended with exit code 0 [2024-11-13 15:03:34,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:34,432 INFO L396 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:34,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:34,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1785108748, now seen corresponding path program 1 times [2024-11-13 15:03:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:34,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797440350] [2024-11-13 15:03:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:34,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:34,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:34,435 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:34,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (146)] Waiting until timeout for monitored process [2024-11-13 15:03:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:35,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:03:35,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:35,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:35,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:35,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:36,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 15:03:36,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 15:03:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:36,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:03:36,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:36,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797440350] [2024-11-13 15:03:36,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797440350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:36,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:36,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:03:36,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602735171] [2024-11-13 15:03:36,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:36,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:03:36,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:36,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:03:36,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:03:36,536 INFO L87 Difference]: Start difference. First operand 2429 states and 3180 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:41,776 INFO L93 Difference]: Finished difference Result 5605 states and 7278 transitions. [2024-11-13 15:03:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:03:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:41,784 INFO L225 Difference]: With dead ends: 5605 [2024-11-13 15:03:41,784 INFO L226 Difference]: Without dead ends: 3179 [2024-11-13 15:03:41,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:03:41,786 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 373 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:41,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 2016 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:03:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-11-13 15:03:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2439. [2024-11-13 15:03:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2332 states have (on average 1.3036020583190395) internal successors, (3040), 2338 states have internal predecessors, (3040), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3196 transitions. [2024-11-13 15:03:42,237 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3196 transitions. Word has length 142 [2024-11-13 15:03:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:42,237 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3196 transitions. [2024-11-13 15:03:42,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3196 transitions. [2024-11-13 15:03:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:42,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:42,239 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:42,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (146)] Ended with exit code 0 [2024-11-13 15:03:42,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:42,440 INFO L396 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:42,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:42,440 INFO L85 PathProgramCache]: Analyzing trace with hash -760547182, now seen corresponding path program 1 times [2024-11-13 15:03:42,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:42,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594846573] [2024-11-13 15:03:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:42,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:42,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:42,443 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:42,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2024-11-13 15:03:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:43,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:03:43,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:43,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:43,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:43,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:44,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 15:03:44,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 15:03:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:44,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:03:44,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:44,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594846573] [2024-11-13 15:03:44,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594846573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:44,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 15:03:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620491481] [2024-11-13 15:03:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:44,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:03:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:03:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:03:44,431 INFO L87 Difference]: Start difference. First operand 2439 states and 3196 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:49,522 INFO L93 Difference]: Finished difference Result 5583 states and 7248 transitions. [2024-11-13 15:03:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:03:49,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:49,533 INFO L225 Difference]: With dead ends: 5583 [2024-11-13 15:03:49,533 INFO L226 Difference]: Without dead ends: 3147 [2024-11-13 15:03:49,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:03:49,536 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 383 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:49,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 2037 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 15:03:49,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2024-11-13 15:03:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 2441. [2024-11-13 15:03:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2334 states have (on average 1.3033419023136248) internal successors, (3042), 2340 states have internal predecessors, (3042), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3198 transitions. [2024-11-13 15:03:50,054 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3198 transitions. Word has length 142 [2024-11-13 15:03:50,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:50,054 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3198 transitions. [2024-11-13 15:03:50,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3198 transitions. [2024-11-13 15:03:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:50,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:50,056 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:50,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Forceful destruction successful, exit code 0 [2024-11-13 15:03:50,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:50,257 INFO L396 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:50,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1607589426, now seen corresponding path program 1 times [2024-11-13 15:03:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:50,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126146995] [2024-11-13 15:03:50,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:50,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:50,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:50,260 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:50,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (148)] Waiting until timeout for monitored process [2024-11-13 15:03:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:51,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:03:51,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:51,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:51,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:51,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:52,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2024-11-13 15:03:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:03:52,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:53,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:53,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126146995] [2024-11-13 15:03:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126146995] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:03:53,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:03:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2024-11-13 15:03:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322192827] [2024-11-13 15:03:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:53,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:03:53,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:03:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:03:53,148 INFO L87 Difference]: Start difference. First operand 2441 states and 3198 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:55,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:55,182 INFO L93 Difference]: Finished difference Result 6253 states and 8161 transitions. [2024-11-13 15:03:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:03:55,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:03:55,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:55,190 INFO L225 Difference]: With dead ends: 6253 [2024-11-13 15:03:55,190 INFO L226 Difference]: Without dead ends: 3815 [2024-11-13 15:03:55,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:03:55,192 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 264 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:55,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1191 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:03:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2024-11-13 15:03:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 2443. [2024-11-13 15:03:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2336 states have (on average 1.3039383561643836) internal successors, (3046), 2342 states have internal predecessors, (3046), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:03:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3202 transitions. [2024-11-13 15:03:55,656 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3202 transitions. Word has length 142 [2024-11-13 15:03:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:55,656 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3202 transitions. [2024-11-13 15:03:55,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:03:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3202 transitions. [2024-11-13 15:03:55,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:03:55,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:55,658 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:55,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (148)] Forceful destruction successful, exit code 0 [2024-11-13 15:03:55,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:55,859 INFO L396 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:55,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1467040816, now seen corresponding path program 1 times [2024-11-13 15:03:55,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:55,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056419787] [2024-11-13 15:03:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:55,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:03:55,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:03:55,862 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:03:55,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (149)] Waiting until timeout for monitored process [2024-11-13 15:03:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:56,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:03:56,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:57,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:03:57,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:03:57,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-13 15:03:58,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2024-11-13 15:03:58,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:03:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:03:58,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:03:58,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:58,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056419787] [2024-11-13 15:03:58,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056419787] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:03:58,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:03:58,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-13 15:03:58,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988974788] [2024-11-13 15:03:58,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:58,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:03:58,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:58,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:03:58,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:03:58,891 INFO L87 Difference]: Start difference. First operand 2443 states and 3202 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:00,591 INFO L93 Difference]: Finished difference Result 5423 states and 7112 transitions. [2024-11-13 15:04:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:04:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:00,598 INFO L225 Difference]: With dead ends: 5423 [2024-11-13 15:04:00,598 INFO L226 Difference]: Without dead ends: 2983 [2024-11-13 15:04:00,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:00,600 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 83 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:00,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 894 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:04:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-11-13 15:04:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2291. [2024-11-13 15:04:01,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 2184 states have (on average 1.3076923076923077) internal successors, (2856), 2190 states have internal predecessors, (2856), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3012 transitions. [2024-11-13 15:04:01,052 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3012 transitions. Word has length 142 [2024-11-13 15:04:01,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:01,052 INFO L471 AbstractCegarLoop]: Abstraction has 2291 states and 3012 transitions. [2024-11-13 15:04:01,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3012 transitions. [2024-11-13 15:04:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:01,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:01,056 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:01,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (149)] Ended with exit code 0 [2024-11-13 15:04:01,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:01,261 INFO L396 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:01,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1723305965, now seen corresponding path program 1 times [2024-11-13 15:04:01,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:01,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232355556] [2024-11-13 15:04:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:01,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:01,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:01,264 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:01,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2024-11-13 15:04:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:02,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:04:02,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:02,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:02,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:02,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:04:03,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:04:03,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:04:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:03,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:04:03,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:03,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232355556] [2024-11-13 15:04:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232355556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:04:03,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:04:03,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:04:03,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991390538] [2024-11-13 15:04:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:03,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:04:03,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:04:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:04:03,588 INFO L87 Difference]: Start difference. First operand 2291 states and 3012 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:09,727 INFO L93 Difference]: Finished difference Result 5121 states and 6664 transitions. [2024-11-13 15:04:09,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:04:09,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:09,735 INFO L225 Difference]: With dead ends: 5121 [2024-11-13 15:04:09,735 INFO L226 Difference]: Without dead ends: 2833 [2024-11-13 15:04:09,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:09,738 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 271 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:09,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 3002 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 15:04:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2024-11-13 15:04:10,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2273. [2024-11-13 15:04:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2166 states have (on average 1.3084025854108956) internal successors, (2834), 2172 states have internal predecessors, (2834), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2990 transitions. [2024-11-13 15:04:10,246 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2990 transitions. Word has length 142 [2024-11-13 15:04:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:10,246 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 2990 transitions. [2024-11-13 15:04:10,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2990 transitions. [2024-11-13 15:04:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:10,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:10,250 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:10,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Forceful destruction successful, exit code 0 [2024-11-13 15:04:10,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:10,450 INFO L396 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:10,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash 602437647, now seen corresponding path program 1 times [2024-11-13 15:04:10,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:10,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507543453] [2024-11-13 15:04:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:10,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:10,454 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:10,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Waiting until timeout for monitored process [2024-11-13 15:04:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:11,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:04:11,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:11,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:11,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:11,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:04:12,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:04:12,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:04:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:12,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:04:12,713 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507543453] [2024-11-13 15:04:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507543453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:04:12,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:04:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:04:12,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680544219] [2024-11-13 15:04:12,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:12,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:04:12,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:12,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:04:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:04:12,715 INFO L87 Difference]: Start difference. First operand 2273 states and 2990 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:18,129 INFO L93 Difference]: Finished difference Result 5141 states and 6694 transitions. [2024-11-13 15:04:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:04:18,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:18,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:18,136 INFO L225 Difference]: With dead ends: 5141 [2024-11-13 15:04:18,136 INFO L226 Difference]: Without dead ends: 2871 [2024-11-13 15:04:18,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:18,138 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 292 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:18,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 2726 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:04:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2024-11-13 15:04:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2293. [2024-11-13 15:04:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2293 states, 2186 states have (on average 1.3083257090576395) internal successors, (2860), 2192 states have internal predecessors, (2860), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3016 transitions. [2024-11-13 15:04:18,778 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3016 transitions. Word has length 142 [2024-11-13 15:04:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:18,778 INFO L471 AbstractCegarLoop]: Abstraction has 2293 states and 3016 transitions. [2024-11-13 15:04:18,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3016 transitions. [2024-11-13 15:04:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:18,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:18,781 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:18,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Ended with exit code 0 [2024-11-13 15:04:18,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:18,982 INFO L396 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:18,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:18,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1235022973, now seen corresponding path program 1 times [2024-11-13 15:04:18,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:18,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588646341] [2024-11-13 15:04:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:18,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:18,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:18,985 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:18,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (152)] Waiting until timeout for monitored process [2024-11-13 15:04:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:19,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 15:04:19,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:19,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:19,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:20,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:04:20,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:04:20,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:04:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:20,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:04:20,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:20,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588646341] [2024-11-13 15:04:20,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588646341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:04:20,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:04:20,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:04:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233130700] [2024-11-13 15:04:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:20,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:04:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:04:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:04:20,900 INFO L87 Difference]: Start difference. First operand 2293 states and 3016 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:26,128 INFO L93 Difference]: Finished difference Result 5139 states and 6688 transitions. [2024-11-13 15:04:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:04:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:26,136 INFO L225 Difference]: With dead ends: 5139 [2024-11-13 15:04:26,136 INFO L226 Difference]: Without dead ends: 2849 [2024-11-13 15:04:26,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:26,138 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 280 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:26,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2857 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 15:04:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2024-11-13 15:04:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2267. [2024-11-13 15:04:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2160 states have (on average 1.3074074074074074) internal successors, (2824), 2166 states have internal predecessors, (2824), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 2980 transitions. [2024-11-13 15:04:26,630 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 2980 transitions. Word has length 142 [2024-11-13 15:04:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:26,631 INFO L471 AbstractCegarLoop]: Abstraction has 2267 states and 2980 transitions. [2024-11-13 15:04:26,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 2980 transitions. [2024-11-13 15:04:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:26,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:26,633 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:26,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (152)] Forceful destruction successful, exit code 0 [2024-11-13 15:04:26,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:26,834 INFO L396 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:26,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1988641041, now seen corresponding path program 1 times [2024-11-13 15:04:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:26,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283439288] [2024-11-13 15:04:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:26,838 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:26,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2024-11-13 15:04:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:27,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:04:27,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:27,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:27,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:27,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:04:28,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:04:28,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:04:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:29,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:04:29,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283439288] [2024-11-13 15:04:29,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283439288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:04:29,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:04:29,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 15:04:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915702506] [2024-11-13 15:04:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:29,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:04:29,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:04:29,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:04:29,136 INFO L87 Difference]: Start difference. First operand 2267 states and 2980 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:36,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:36,815 INFO L93 Difference]: Finished difference Result 5283 states and 6859 transitions. [2024-11-13 15:04:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:04:36,817 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:36,824 INFO L225 Difference]: With dead ends: 5283 [2024-11-13 15:04:36,825 INFO L226 Difference]: Without dead ends: 3019 [2024-11-13 15:04:36,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:04:36,827 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 348 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:36,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 3578 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:04:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2024-11-13 15:04:37,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 2281. [2024-11-13 15:04:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2174 states have (on average 1.3063477460901565) internal successors, (2840), 2180 states have internal predecessors, (2840), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 2996 transitions. [2024-11-13 15:04:37,414 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 2996 transitions. Word has length 142 [2024-11-13 15:04:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:37,414 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 2996 transitions. [2024-11-13 15:04:37,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 2996 transitions. [2024-11-13 15:04:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:37,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:37,418 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:37,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (153)] Ended with exit code 0 [2024-11-13 15:04:37,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:37,623 INFO L396 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:37,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1170992591, now seen corresponding path program 1 times [2024-11-13 15:04:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:37,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186888141] [2024-11-13 15:04:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:37,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:37,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:37,629 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:37,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Waiting until timeout for monitored process [2024-11-13 15:04:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:38,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 15:04:38,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:38,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:38,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:38,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-11-13 15:04:39,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 15:04:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:04:39,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:04:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:40,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:40,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186888141] [2024-11-13 15:04:40,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186888141] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:04:40,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:04:40,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2024-11-13 15:04:40,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109886211] [2024-11-13 15:04:40,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:40,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:04:40,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:40,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:04:40,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:40,526 INFO L87 Difference]: Start difference. First operand 2281 states and 2996 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:42,388 INFO L93 Difference]: Finished difference Result 5647 states and 7395 transitions. [2024-11-13 15:04:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:04:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:42,394 INFO L225 Difference]: With dead ends: 5647 [2024-11-13 15:04:42,394 INFO L226 Difference]: Without dead ends: 3369 [2024-11-13 15:04:42,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:04:42,396 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 398 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:42,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1110 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:04:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2024-11-13 15:04:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 2405. [2024-11-13 15:04:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2298 states have (on average 1.3063533507397738) internal successors, (3002), 2304 states have internal predecessors, (3002), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3158 transitions. [2024-11-13 15:04:42,892 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3158 transitions. Word has length 142 [2024-11-13 15:04:42,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:42,893 INFO L471 AbstractCegarLoop]: Abstraction has 2405 states and 3158 transitions. [2024-11-13 15:04:42,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:42,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3158 transitions. [2024-11-13 15:04:42,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:42,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:42,895 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:42,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Forceful destruction successful, exit code 0 [2024-11-13 15:04:43,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 154 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:43,095 INFO L396 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:43,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -383098221, now seen corresponding path program 1 times [2024-11-13 15:04:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:43,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184676218] [2024-11-13 15:04:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:43,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:43,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:43,098 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:43,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Waiting until timeout for monitored process [2024-11-13 15:04:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:43,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:04:44,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:44,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:44,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:44,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:04:44,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-13 15:04:45,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-13 15:04:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:45,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:04:45,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:45,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184676218] [2024-11-13 15:04:45,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184676218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:04:45,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:04:45,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:04:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024531114] [2024-11-13 15:04:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:45,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:04:45,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:04:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:04:45,289 INFO L87 Difference]: Start difference. First operand 2405 states and 3158 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:50,773 INFO L93 Difference]: Finished difference Result 5381 states and 6998 transitions. [2024-11-13 15:04:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:04:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:04:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:50,781 INFO L225 Difference]: With dead ends: 5381 [2024-11-13 15:04:50,781 INFO L226 Difference]: Without dead ends: 2979 [2024-11-13 15:04:50,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:04:50,783 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 257 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:50,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 2819 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 15:04:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2024-11-13 15:04:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2405. [2024-11-13 15:04:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2298 states have (on average 1.3063533507397738) internal successors, (3002), 2304 states have internal predecessors, (3002), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:04:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3158 transitions. [2024-11-13 15:04:51,348 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3158 transitions. Word has length 142 [2024-11-13 15:04:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:51,348 INFO L471 AbstractCegarLoop]: Abstraction has 2405 states and 3158 transitions. [2024-11-13 15:04:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:04:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3158 transitions. [2024-11-13 15:04:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:04:51,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:51,350 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:51,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Ended with exit code 0 [2024-11-13 15:04:51,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:51,550 INFO L396 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:51,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1200746671, now seen corresponding path program 1 times [2024-11-13 15:04:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:51,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255688667] [2024-11-13 15:04:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:04:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:04:51,553 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:04:51,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Waiting until timeout for monitored process [2024-11-13 15:04:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:04:52,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 15:04:52,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:52,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:04:52,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:04:52,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-11-13 15:04:53,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 15:04:54,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 15:04:54,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 15:04:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:04:54,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:04:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:04:56,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:56,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255688667] [2024-11-13 15:04:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255688667] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:04:56,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:04:56,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [19] total 36 [2024-11-13 15:04:56,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793462300] [2024-11-13 15:04:56,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:04:56,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 15:04:56,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:04:56,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 15:04:56,519 INFO L87 Difference]: Start difference. First operand 2405 states and 3158 transitions. Second operand has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:02,719 INFO L93 Difference]: Finished difference Result 6075 states and 7919 transitions. [2024-11-13 15:05:02,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 15:05:02,719 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:02,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:02,727 INFO L225 Difference]: With dead ends: 6075 [2024-11-13 15:05:02,727 INFO L226 Difference]: Without dead ends: 3673 [2024-11-13 15:05:02,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=438, Invalid=2642, Unknown=0, NotChecked=0, Total=3080 [2024-11-13 15:05:02,729 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 469 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:02,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 2711 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 15:05:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3673 states. [2024-11-13 15:05:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3673 to 2465. [2024-11-13 15:05:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2358 states have (on average 1.306191687871077) internal successors, (3080), 2364 states have internal predecessors, (3080), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:03,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3236 transitions. [2024-11-13 15:05:03,270 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3236 transitions. Word has length 142 [2024-11-13 15:05:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:03,270 INFO L471 AbstractCegarLoop]: Abstraction has 2465 states and 3236 transitions. [2024-11-13 15:05:03,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3236 transitions. [2024-11-13 15:05:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:03,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:03,272 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:03,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Forceful destruction successful, exit code 0 [2024-11-13 15:05:03,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:03,473 INFO L396 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:03,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:03,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1100075919, now seen corresponding path program 1 times [2024-11-13 15:05:03,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:03,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110045454] [2024-11-13 15:05:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:03,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:03,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:03,478 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:03,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (157)] Waiting until timeout for monitored process [2024-11-13 15:05:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:04,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 15:05:04,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:04,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:05:04,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:05:04,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-11-13 15:05:05,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 15:05:05,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 15:05:06,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-13 15:05:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-13 15:05:06,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:05:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:08,129 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:08,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110045454] [2024-11-13 15:05:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110045454] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:05:08,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:05:08,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [19] total 34 [2024-11-13 15:05:08,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132455295] [2024-11-13 15:05:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:08,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 15:05:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:05:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 15:05:08,130 INFO L87 Difference]: Start difference. First operand 2465 states and 3236 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:13,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:13,249 INFO L93 Difference]: Finished difference Result 5805 states and 7559 transitions. [2024-11-13 15:05:13,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 15:05:13,250 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:13,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:13,257 INFO L225 Difference]: With dead ends: 5805 [2024-11-13 15:05:13,257 INFO L226 Difference]: Without dead ends: 3343 [2024-11-13 15:05:13,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=347, Invalid=2103, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 15:05:13,260 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 535 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:13,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 2510 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 15:05:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2024-11-13 15:05:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 2441. [2024-11-13 15:05:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2334 states have (on average 1.3059125964010283) internal successors, (3048), 2340 states have internal predecessors, (3048), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3204 transitions. [2024-11-13 15:05:13,817 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3204 transitions. Word has length 142 [2024-11-13 15:05:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:13,817 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3204 transitions. [2024-11-13 15:05:13,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3204 transitions. [2024-11-13 15:05:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:13,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:13,820 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:13,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (157)] Ended with exit code 0 [2024-11-13 15:05:14,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:14,020 INFO L396 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:14,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:14,020 INFO L85 PathProgramCache]: Analyzing trace with hash -508934700, now seen corresponding path program 1 times [2024-11-13 15:05:14,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:14,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808981335] [2024-11-13 15:05:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:14,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:14,023 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:14,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (158)] Waiting until timeout for monitored process [2024-11-13 15:05:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:14,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:05:14,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:14,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:05:15,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 15:05:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:15,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:15,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:15,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808981335] [2024-11-13 15:05:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808981335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:15,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:05:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794201608] [2024-11-13 15:05:15,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:15,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:05:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:15,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:05:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:05:15,687 INFO L87 Difference]: Start difference. First operand 2441 states and 3204 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:19,155 INFO L93 Difference]: Finished difference Result 5228 states and 6823 transitions. [2024-11-13 15:05:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:05:19,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:19,163 INFO L225 Difference]: With dead ends: 5228 [2024-11-13 15:05:19,163 INFO L226 Difference]: Without dead ends: 2790 [2024-11-13 15:05:19,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:05:19,165 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 183 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:19,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1804 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 15:05:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-11-13 15:05:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2419. [2024-11-13 15:05:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2312 states have (on average 1.305363321799308) internal successors, (3018), 2318 states have internal predecessors, (3018), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:19,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3174 transitions. [2024-11-13 15:05:19,788 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3174 transitions. Word has length 142 [2024-11-13 15:05:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:19,788 INFO L471 AbstractCegarLoop]: Abstraction has 2419 states and 3174 transitions. [2024-11-13 15:05:19,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3174 transitions. [2024-11-13 15:05:19,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:19,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:19,800 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:19,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (158)] Ended with exit code 0 [2024-11-13 15:05:20,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:20,000 INFO L396 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:20,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1414293334, now seen corresponding path program 1 times [2024-11-13 15:05:20,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:20,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079179207] [2024-11-13 15:05:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:20,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:20,003 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:20,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Waiting until timeout for monitored process [2024-11-13 15:05:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:20,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:05:20,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:20,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:05:21,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 15:05:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:22,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:22,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:22,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079179207] [2024-11-13 15:05:22,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079179207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:22,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:22,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:05:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32814683] [2024-11-13 15:05:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:22,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:05:22,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:22,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:05:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:05:22,118 INFO L87 Difference]: Start difference. First operand 2419 states and 3174 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:26,730 INFO L93 Difference]: Finished difference Result 5338 states and 6948 transitions. [2024-11-13 15:05:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:05:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:26,737 INFO L225 Difference]: With dead ends: 5338 [2024-11-13 15:05:26,737 INFO L226 Difference]: Without dead ends: 2922 [2024-11-13 15:05:26,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:05:26,739 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 272 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:26,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2016 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:05:26,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-11-13 15:05:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2401. [2024-11-13 15:05:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 2294 states have (on average 1.3051438535309503) internal successors, (2994), 2300 states have internal predecessors, (2994), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 3150 transitions. [2024-11-13 15:05:27,436 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 3150 transitions. Word has length 142 [2024-11-13 15:05:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:27,437 INFO L471 AbstractCegarLoop]: Abstraction has 2401 states and 3150 transitions. [2024-11-13 15:05:27,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 3150 transitions. [2024-11-13 15:05:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:27,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:27,439 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:27,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Ended with exit code 0 [2024-11-13 15:05:27,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 159 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:27,640 INFO L396 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:27,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:27,640 INFO L85 PathProgramCache]: Analyzing trace with hash 567251090, now seen corresponding path program 1 times [2024-11-13 15:05:27,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:27,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004290451] [2024-11-13 15:05:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:27,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:27,643 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:27,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (160)] Waiting until timeout for monitored process [2024-11-13 15:05:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:28,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:05:28,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:28,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:05:29,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 15:05:29,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:05:29,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:05:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:29,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:29,723 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004290451] [2024-11-13 15:05:29,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004290451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:29,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:29,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:05:29,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228747430] [2024-11-13 15:05:29,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:29,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:05:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:05:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:05:29,724 INFO L87 Difference]: Start difference. First operand 2401 states and 3150 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:35,477 INFO L93 Difference]: Finished difference Result 5346 states and 6960 transitions. [2024-11-13 15:05:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:05:35,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:35,484 INFO L225 Difference]: With dead ends: 5346 [2024-11-13 15:05:35,484 INFO L226 Difference]: Without dead ends: 2948 [2024-11-13 15:05:35,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:05:35,486 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 259 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:35,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 2562 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 15:05:35,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2024-11-13 15:05:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2365. [2024-11-13 15:05:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2258 states have (on average 1.3029229406554472) internal successors, (2942), 2264 states have internal predecessors, (2942), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3098 transitions. [2024-11-13 15:05:35,980 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3098 transitions. Word has length 142 [2024-11-13 15:05:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:35,980 INFO L471 AbstractCegarLoop]: Abstraction has 2365 states and 3098 transitions. [2024-11-13 15:05:35,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3098 transitions. [2024-11-13 15:05:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:35,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:35,982 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:35,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (160)] Ended with exit code 0 [2024-11-13 15:05:36,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 160 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:36,182 INFO L396 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:36,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:36,183 INFO L85 PathProgramCache]: Analyzing trace with hash -60258418, now seen corresponding path program 1 times [2024-11-13 15:05:36,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:36,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534986600] [2024-11-13 15:05:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:36,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:36,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:36,185 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:36,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (161)] Waiting until timeout for monitored process [2024-11-13 15:05:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:36,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:05:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:37,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 15:05:37,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-13 15:05:37,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:05:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:37,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:37,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534986600] [2024-11-13 15:05:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534986600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:37,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:37,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:05:37,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051998012] [2024-11-13 15:05:37,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:37,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:05:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:05:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:05:37,790 INFO L87 Difference]: Start difference. First operand 2365 states and 3098 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:41,310 INFO L93 Difference]: Finished difference Result 5098 states and 6639 transitions. [2024-11-13 15:05:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:05:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:41,319 INFO L225 Difference]: With dead ends: 5098 [2024-11-13 15:05:41,319 INFO L226 Difference]: Without dead ends: 2736 [2024-11-13 15:05:41,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:05:41,322 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 175 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:41,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1980 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 15:05:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2024-11-13 15:05:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2315. [2024-11-13 15:05:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2208 states have (on average 1.3034420289855073) internal successors, (2878), 2214 states have internal predecessors, (2878), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3034 transitions. [2024-11-13 15:05:41,880 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3034 transitions. Word has length 142 [2024-11-13 15:05:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:41,881 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3034 transitions. [2024-11-13 15:05:41,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3034 transitions. [2024-11-13 15:05:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:41,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:41,883 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:41,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (161)] Forceful destruction successful, exit code 0 [2024-11-13 15:05:42,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 161 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:42,083 INFO L396 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:42,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -946144396, now seen corresponding path program 1 times [2024-11-13 15:05:42,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:42,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984522708] [2024-11-13 15:05:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:42,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:42,086 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:42,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Waiting until timeout for monitored process [2024-11-13 15:05:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:42,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 15:05:42,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:43,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:05:43,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 15:05:43,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 15:05:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:43,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:43,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:43,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984522708] [2024-11-13 15:05:43,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984522708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:43,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:43,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:05:43,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466905332] [2024-11-13 15:05:43,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:43,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:05:43,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:43,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:05:43,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:05:43,844 INFO L87 Difference]: Start difference. First operand 2315 states and 3034 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:52,423 INFO L93 Difference]: Finished difference Result 5498 states and 7105 transitions. [2024-11-13 15:05:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:05:52,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:52,431 INFO L225 Difference]: With dead ends: 5498 [2024-11-13 15:05:52,431 INFO L226 Difference]: Without dead ends: 3186 [2024-11-13 15:05:52,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:05:52,433 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 367 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:52,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 2676 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-13 15:05:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2024-11-13 15:05:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2313. [2024-11-13 15:05:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 2206 states have (on average 1.3028105167724389) internal successors, (2874), 2212 states have internal predecessors, (2874), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:05:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3030 transitions. [2024-11-13 15:05:52,990 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3030 transitions. Word has length 142 [2024-11-13 15:05:52,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:05:52,991 INFO L471 AbstractCegarLoop]: Abstraction has 2313 states and 3030 transitions. [2024-11-13 15:05:52,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3030 transitions. [2024-11-13 15:05:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:05:52,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:05:52,993 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:05:53,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Ended with exit code 0 [2024-11-13 15:05:53,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 162 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:53,193 INFO L396 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:05:53,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:05:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash -909146988, now seen corresponding path program 1 times [2024-11-13 15:05:53,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:05:53,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508899574] [2024-11-13 15:05:53,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:05:53,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:05:53,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:05:53,199 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:05:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Waiting until timeout for monitored process [2024-11-13 15:05:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:05:54,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:05:54,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:05:54,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:05:54,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-13 15:05:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:05:54,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:05:54,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:05:54,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508899574] [2024-11-13 15:05:54,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508899574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:05:54,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:05:54,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:05:54,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860061900] [2024-11-13 15:05:54,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:05:54,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:05:54,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:05:54,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:05:54,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:05:54,893 INFO L87 Difference]: Start difference. First operand 2313 states and 3030 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:05:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:05:59,282 INFO L93 Difference]: Finished difference Result 5708 states and 7416 transitions. [2024-11-13 15:05:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:05:59,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:05:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:05:59,292 INFO L225 Difference]: With dead ends: 5708 [2024-11-13 15:05:59,292 INFO L226 Difference]: Without dead ends: 3398 [2024-11-13 15:05:59,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:05:59,295 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 423 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:05:59,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1490 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 15:05:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2024-11-13 15:06:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 2337. [2024-11-13 15:06:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2230 states have (on average 1.3044843049327355) internal successors, (2909), 2236 states have internal predecessors, (2909), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:06:00,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3065 transitions. [2024-11-13 15:06:00,149 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3065 transitions. Word has length 142 [2024-11-13 15:06:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:06:00,149 INFO L471 AbstractCegarLoop]: Abstraction has 2337 states and 3065 transitions. [2024-11-13 15:06:00,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:06:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3065 transitions. [2024-11-13 15:06:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:06:00,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:06:00,151 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:00,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Forceful destruction successful, exit code 0 [2024-11-13 15:06:00,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:00,352 INFO L396 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:06:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1014081046, now seen corresponding path program 1 times [2024-11-13 15:06:00,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:06:00,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907204291] [2024-11-13 15:06:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:00,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:00,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:06:00,355 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:06:00,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Waiting until timeout for monitored process [2024-11-13 15:06:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:01,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:06:01,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:01,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:06:02,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-13 15:06:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:06:02,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:02,706 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:06:02,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907204291] [2024-11-13 15:06:02,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907204291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:02,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:06:02,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:06:02,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148511042] [2024-11-13 15:06:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:02,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:06:02,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:06:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:06:02,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:06:02,708 INFO L87 Difference]: Start difference. First operand 2337 states and 3065 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:06:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:06:09,548 INFO L93 Difference]: Finished difference Result 5882 states and 7628 transitions. [2024-11-13 15:06:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:06:09,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:06:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:06:09,563 INFO L225 Difference]: With dead ends: 5882 [2024-11-13 15:06:09,563 INFO L226 Difference]: Without dead ends: 3548 [2024-11-13 15:06:09,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:06:09,566 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 489 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:06:09,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1889 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 15:06:09,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2024-11-13 15:06:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 2351. [2024-11-13 15:06:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 2244 states have (on average 1.304367201426025) internal successors, (2927), 2250 states have internal predecessors, (2927), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:06:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3083 transitions. [2024-11-13 15:06:10,396 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3083 transitions. Word has length 142 [2024-11-13 15:06:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:06:10,396 INFO L471 AbstractCegarLoop]: Abstraction has 2351 states and 3083 transitions. [2024-11-13 15:06:10,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:06:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3083 transitions. [2024-11-13 15:06:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:06:10,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:06:10,400 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:10,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Ended with exit code 0 [2024-11-13 15:06:10,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:10,601 INFO L396 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:06:10,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash 167038802, now seen corresponding path program 1 times [2024-11-13 15:06:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:06:10,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924768645] [2024-11-13 15:06:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:10,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:10,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:06:10,604 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:06:10,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Waiting until timeout for monitored process [2024-11-13 15:06:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:11,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:06:11,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:11,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:06:12,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-13 15:06:12,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-13 15:06:12,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 15:06:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:06:13,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:13,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:06:13,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924768645] [2024-11-13 15:06:13,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924768645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:13,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:06:13,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:06:13,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115753023] [2024-11-13 15:06:13,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:13,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:06:13,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:06:13,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:06:13,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:06:13,194 INFO L87 Difference]: Start difference. First operand 2351 states and 3083 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:06:23,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:06:23,426 INFO L93 Difference]: Finished difference Result 5976 states and 7752 transitions. [2024-11-13 15:06:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:06:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-11-13 15:06:23,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:06:23,434 INFO L225 Difference]: With dead ends: 5976 [2024-11-13 15:06:23,435 INFO L226 Difference]: Without dead ends: 3628 [2024-11-13 15:06:23,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:06:23,437 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 471 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:06:23,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 2656 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-13 15:06:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2024-11-13 15:06:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 2351. [2024-11-13 15:06:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 2244 states have (on average 1.304367201426025) internal successors, (2927), 2250 states have internal predecessors, (2927), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 15:06:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3083 transitions. [2024-11-13 15:06:24,222 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3083 transitions. Word has length 142 [2024-11-13 15:06:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:06:24,222 INFO L471 AbstractCegarLoop]: Abstraction has 2351 states and 3083 transitions. [2024-11-13 15:06:24,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 15:06:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3083 transitions. [2024-11-13 15:06:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:06:24,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:06:24,224 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:24,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Ended with exit code 0 [2024-11-13 15:06:24,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 165 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:24,425 INFO L396 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:06:24,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:24,425 INFO L85 PathProgramCache]: Analyzing trace with hash -460470706, now seen corresponding path program 1 times [2024-11-13 15:06:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:06:24,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470404715] [2024-11-13 15:06:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:24,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:06:24,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:06:24,428 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:06:24,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef2f329-e88f-4956-a888-47339c125193/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (166)] Waiting until timeout for monitored process [2024-11-13 15:06:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:25,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 15:06:25,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:25,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 15:06:26,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 15:06:26,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-13 15:06:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 15:06:26,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:26,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:06:26,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470404715] [2024-11-13 15:06:26,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470404715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:26,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:06:26,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:06:26,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849412877] [2024-11-13 15:06:26,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:26,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:06:26,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:06:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:06:26,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:06:26,452 INFO L87 Difference]: Start difference. First operand 2351 states and 3083 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)