./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB --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 ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:16:51,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:16:51,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:16:51,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:16:51,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:16:51,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:16:51,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:16:51,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:16:51,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:16:51,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:16:51,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:16:51,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:16:51,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:16:51,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:16:51,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:16:51,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:16:51,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:16:51,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:16:52,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:16:52,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:16:52,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:16:52,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:16:52,002 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:16:52,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:52,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:16:52,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:52,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:16:52,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:16:52,004 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_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 [2024-11-28 04:16:52,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:16:52,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:16:52,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:16:52,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:16:52,467 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:16:52,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:16:56,352 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/623a8fcd8/32bfe39a64eb4333a20f2b65c1b98297/FLAGcd3fef63a [2024-11-28 04:16:56,659 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:16:56,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:16:56,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/623a8fcd8/32bfe39a64eb4333a20f2b65c1b98297/FLAGcd3fef63a [2024-11-28 04:16:56,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/623a8fcd8/32bfe39a64eb4333a20f2b65c1b98297 [2024-11-28 04:16:56,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:16:56,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:16:56,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:16:56,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:16:56,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:16:56,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:16:56" (1/1) ... [2024-11-28 04:16:56,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27709d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:56, skipping insertion in model container [2024-11-28 04:16:56,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:16:56" (1/1) ... [2024-11-28 04:16:56,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:16:57,157 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_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-11-28 04:16:57,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:16:57,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:16:57,269 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_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-11-28 04:16:57,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:16:57,354 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:16:57,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57 WrapperNode [2024-11-28 04:16:57,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:16:57,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:16:57,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:16:57,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:16:57,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,427 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 530 [2024-11-28 04:16:57,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:16:57,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:16:57,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:16:57,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:16:57,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,504 INFO L175 MemorySlicer]: Split 134 memory accesses to 8 slices as follows [2, 16, 11, 54, 3, 4, 10, 34]. 40 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 4, 1, 1, 2, 4]. The 19 writes are split as follows [0, 2, 2, 6, 1, 1, 2, 5]. [2024-11-28 04:16:57,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,536 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:16:57,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:16:57,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:16:57,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:16:57,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (1/1) ... [2024-11-28 04:16:57,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:57,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:57,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:16:57,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:16:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:16:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:16:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:16:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:16:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:16:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:16:57,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:16:57,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:16:57,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:16:57,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:16:57,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:16:57,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-28 04:16:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-28 04:16:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-28 04:16:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-28 04:16:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-28 04:16:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:16:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:16:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-28 04:16:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:16:57,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:16:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:16:57,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:16:57,950 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:16:57,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:16:58,804 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-11-28 04:16:58,805 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:16:58,819 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:16:58,819 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:16:58,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:58 BoogieIcfgContainer [2024-11-28 04:16:58,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:16:58,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:16:58,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:16:58,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:16:58,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:16:56" (1/3) ... [2024-11-28 04:16:58,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61abdc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:16:58, skipping insertion in model container [2024-11-28 04:16:58,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:57" (2/3) ... [2024-11-28 04:16:58,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61abdc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:16:58, skipping insertion in model container [2024-11-28 04:16:58,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:58" (3/3) ... [2024-11-28 04:16:58,833 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:16:58,854 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:16:58,856 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-88.i that has 2 procedures, 119 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:16:58,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:16:58,976 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;@7449ce84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:16:58,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:16:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 100 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:16:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:16:59,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:59,005 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:59,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:16:59,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash -918837053, now seen corresponding path program 1 times [2024-11-28 04:16:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454780384] [2024-11-28 04:16:59,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:59,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 04:16:59,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:59,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454780384] [2024-11-28 04:16:59,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454780384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:59,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950136157] [2024-11-28 04:16:59,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:59,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:59,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:59,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:59,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:16:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:59,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:17:00,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 04:17:00,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:00,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950136157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:00,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:17:00,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:17:00,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127743991] [2024-11-28 04:17:00,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:00,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:17:00,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:00,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:17:00,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:17:00,120 INFO L87 Difference]: Start difference. First operand has 119 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 100 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:00,155 INFO L93 Difference]: Finished difference Result 231 states and 361 transitions. [2024-11-28 04:17:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:17:00,159 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-28 04:17:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:00,169 INFO L225 Difference]: With dead ends: 231 [2024-11-28 04:17:00,169 INFO L226 Difference]: Without dead ends: 115 [2024-11-28 04:17:00,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:17:00,179 INFO L435 NwaCegarLoop]: 168 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, 168 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 [2024-11-28 04:17:00,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-28 04:17:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-28 04:17:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2024-11-28 04:17:00,251 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 143 [2024-11-28 04:17:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:00,251 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2024-11-28 04:17:00,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2024-11-28 04:17:00,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:00,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:00,258 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:00,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:17:00,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:17:00,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:00,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2048209707, now seen corresponding path program 1 times [2024-11-28 04:17:00,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:00,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440706491] [2024-11-28 04:17:00,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:01,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:01,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440706491] [2024-11-28 04:17:01,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440706491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:01,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:01,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078507588] [2024-11-28 04:17:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:01,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:17:01,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:01,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:17:01,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:01,121 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:01,174 INFO L93 Difference]: Finished difference Result 230 states and 337 transitions. [2024-11-28 04:17:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:17:01,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:01,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:01,177 INFO L225 Difference]: With dead ends: 230 [2024-11-28 04:17:01,177 INFO L226 Difference]: Without dead ends: 118 [2024-11-28 04:17:01,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:01,179 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:01,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 484 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:01,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-28 04:17:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-28 04:17:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 98 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2024-11-28 04:17:01,199 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 143 [2024-11-28 04:17:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:01,203 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2024-11-28 04:17:01,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2024-11-28 04:17:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:01,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:01,207 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:01,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:17:01,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:01,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1368151337, now seen corresponding path program 1 times [2024-11-28 04:17:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:01,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137111422] [2024-11-28 04:17:01,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:01,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:01,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:01,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137111422] [2024-11-28 04:17:01,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137111422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:01,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:01,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:01,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084558559] [2024-11-28 04:17:01,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:01,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:17:01,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:01,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:17:01,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:01,602 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:01,676 INFO L93 Difference]: Finished difference Result 234 states and 341 transitions. [2024-11-28 04:17:01,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:17:01,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:01,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:01,683 INFO L225 Difference]: With dead ends: 234 [2024-11-28 04:17:01,683 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:17:01,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:01,689 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:01,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 485 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:17:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-28 04:17:01,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 172 transitions. [2024-11-28 04:17:01,709 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 172 transitions. Word has length 143 [2024-11-28 04:17:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:01,710 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 172 transitions. [2024-11-28 04:17:01,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 172 transitions. [2024-11-28 04:17:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:01,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:01,714 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:01,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:17:01,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:01,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:01,715 INFO L85 PathProgramCache]: Analyzing trace with hash 406856025, now seen corresponding path program 1 times [2024-11-28 04:17:01,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:01,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155141943] [2024-11-28 04:17:01,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:02,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:02,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155141943] [2024-11-28 04:17:02,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155141943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:02,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:02,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:02,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306705363] [2024-11-28 04:17:02,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:02,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:17:02,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:02,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:17:02,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:02,065 INFO L87 Difference]: Start difference. First operand 119 states and 172 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:02,118 INFO L93 Difference]: Finished difference Result 238 states and 345 transitions. [2024-11-28 04:17:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:17:02,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:02,122 INFO L225 Difference]: With dead ends: 238 [2024-11-28 04:17:02,123 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 04:17:02,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:02,128 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:02,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 04:17:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-28 04:17:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.3725490196078431) internal successors, (140), 102 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 174 transitions. [2024-11-28 04:17:02,150 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 174 transitions. Word has length 143 [2024-11-28 04:17:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:02,151 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 174 transitions. [2024-11-28 04:17:02,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 174 transitions. [2024-11-28 04:17:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:02,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:02,157 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:02,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:17:02,158 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:02,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash 408703067, now seen corresponding path program 1 times [2024-11-28 04:17:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:02,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827251983] [2024-11-28 04:17:02,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:03,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:03,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827251983] [2024-11-28 04:17:03,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827251983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:03,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:03,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:17:03,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288508744] [2024-11-28 04:17:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:03,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:03,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:03,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:17:03,348 INFO L87 Difference]: Start difference. First operand 121 states and 174 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:03,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:03,585 INFO L93 Difference]: Finished difference Result 266 states and 382 transitions. [2024-11-28 04:17:03,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:03,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:03,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:03,588 INFO L225 Difference]: With dead ends: 266 [2024-11-28 04:17:03,588 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 04:17:03,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:03,591 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 108 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:03,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 571 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:17:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 04:17:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-11-28 04:17:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 120 states have (on average 1.3416666666666666) internal successors, (161), 121 states have internal predecessors, (161), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:17:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2024-11-28 04:17:03,616 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 143 [2024-11-28 04:17:03,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:03,618 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2024-11-28 04:17:03,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2024-11-28 04:17:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:17:03,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:03,623 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:03,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:17:03,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:03,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash 639395789, now seen corresponding path program 1 times [2024-11-28 04:17:03,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:03,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134915382] [2024-11-28 04:17:03,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:03,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 04:17:04,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134915382] [2024-11-28 04:17:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134915382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:17:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102515329] [2024-11-28 04:17:04,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:17:04,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:17:04,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:17:04,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:17:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:04,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:17:04,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:04,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:04,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102515329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:04,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:17:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-28 04:17:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035203014] [2024-11-28 04:17:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:04,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:04,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:04,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:04,573 INFO L87 Difference]: Start difference. First operand 147 states and 209 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:04,640 INFO L93 Difference]: Finished difference Result 274 states and 389 transitions. [2024-11-28 04:17:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:04,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-28 04:17:04,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:04,645 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:17:04,645 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:17:04,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:04,649 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:04,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:17:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-28 04:17:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 123 states have (on average 1.3333333333333333) internal successors, (164), 124 states have internal predecessors, (164), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:17:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 212 transitions. [2024-11-28 04:17:04,682 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 212 transitions. Word has length 145 [2024-11-28 04:17:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:04,683 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 212 transitions. [2024-11-28 04:17:04,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2024-11-28 04:17:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:17:04,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:04,686 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:04,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:17:04,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:17:04,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:04,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1909797871, now seen corresponding path program 1 times [2024-11-28 04:17:04,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:04,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402851533] [2024-11-28 04:17:04,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:04,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402851533] [2024-11-28 04:17:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402851533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:05,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:05,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693323667] [2024-11-28 04:17:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:05,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:05,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:05,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:05,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:05,891 INFO L87 Difference]: Start difference. First operand 150 states and 212 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:06,200 INFO L93 Difference]: Finished difference Result 278 states and 392 transitions. [2024-11-28 04:17:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-11-28 04:17:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:06,203 INFO L225 Difference]: With dead ends: 278 [2024-11-28 04:17:06,204 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:17:06,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:17:06,206 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 103 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:06,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 731 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:17:06,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:17:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2024-11-28 04:17:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 122 states have internal predecessors, (161), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:17:06,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2024-11-28 04:17:06,237 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 146 [2024-11-28 04:17:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:06,238 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2024-11-28 04:17:06,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2024-11-28 04:17:06,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:17:06,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:06,242 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:06,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:17:06,242 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:06,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:06,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1656837134, now seen corresponding path program 1 times [2024-11-28 04:17:06,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:06,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032842692] [2024-11-28 04:17:06,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:06,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:07,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:07,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032842692] [2024-11-28 04:17:07,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032842692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:07,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:07,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:07,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155114302] [2024-11-28 04:17:07,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:07,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:17:07,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:07,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:17:07,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:07,183 INFO L87 Difference]: Start difference. First operand 148 states and 209 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:07,521 INFO L93 Difference]: Finished difference Result 316 states and 447 transitions. [2024-11-28 04:17:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:17:07,522 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-28 04:17:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:07,524 INFO L225 Difference]: With dead ends: 316 [2024-11-28 04:17:07,524 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 04:17:07,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:17:07,526 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 86 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:07,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 450 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:17:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 04:17:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 176. [2024-11-28 04:17:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 138 states have (on average 1.289855072463768) internal successors, (178), 138 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:17:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 246 transitions. [2024-11-28 04:17:07,557 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 246 transitions. Word has length 147 [2024-11-28 04:17:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:07,558 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 246 transitions. [2024-11-28 04:17:07,558 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 246 transitions. [2024-11-28 04:17:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:17:07,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:07,560 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:07,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:17:07,560 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:07,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash -106459473, now seen corresponding path program 1 times [2024-11-28 04:17:07,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142531280] [2024-11-28 04:17:07,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:07,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:07,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142531280] [2024-11-28 04:17:07,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142531280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:07,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:07,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:17:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397944879] [2024-11-28 04:17:07,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:07,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:17:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:07,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:17:07,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:07,759 INFO L87 Difference]: Start difference. First operand 176 states and 246 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:07,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:07,818 INFO L93 Difference]: Finished difference Result 372 states and 523 transitions. [2024-11-28 04:17:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:17:07,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 149 [2024-11-28 04:17:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:07,821 INFO L225 Difference]: With dead ends: 372 [2024-11-28 04:17:07,822 INFO L226 Difference]: Without dead ends: 247 [2024-11-28 04:17:07,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:07,823 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 85 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:07,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 313 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-28 04:17:07,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 198. [2024-11-28 04:17:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 160 states have (on average 1.325) internal successors, (212), 160 states have internal predecessors, (212), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:17:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2024-11-28 04:17:07,863 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 149 [2024-11-28 04:17:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:07,864 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2024-11-28 04:17:07,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2024-11-28 04:17:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:17:07,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:07,868 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:07,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:17:07,869 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:07,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:07,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2087024059, now seen corresponding path program 1 times [2024-11-28 04:17:07,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:07,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793365298] [2024-11-28 04:17:07,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:08,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:08,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793365298] [2024-11-28 04:17:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793365298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:08,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:17:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645832743] [2024-11-28 04:17:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:08,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:17:08,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:08,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:17:08,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:08,064 INFO L87 Difference]: Start difference. First operand 198 states and 280 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:08,137 INFO L93 Difference]: Finished difference Result 417 states and 592 transitions. [2024-11-28 04:17:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:17:08,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:17:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:08,143 INFO L225 Difference]: With dead ends: 417 [2024-11-28 04:17:08,146 INFO L226 Difference]: Without dead ends: 270 [2024-11-28 04:17:08,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:08,148 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 82 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:08,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 316 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-28 04:17:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 221. [2024-11-28 04:17:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 183 states have (on average 1.349726775956284) internal successors, (247), 183 states have internal predecessors, (247), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:17:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 315 transitions. [2024-11-28 04:17:08,185 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 315 transitions. Word has length 150 [2024-11-28 04:17:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:08,186 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 315 transitions. [2024-11-28 04:17:08,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 315 transitions. [2024-11-28 04:17:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:17:08,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:08,189 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:08,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:17:08,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:08,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1164516556, now seen corresponding path program 1 times [2024-11-28 04:17:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342972099] [2024-11-28 04:17:08,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:08,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:08,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342972099] [2024-11-28 04:17:08,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342972099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:08,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:08,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:08,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281190975] [2024-11-28 04:17:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:08,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:08,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:08,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:08,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:08,867 INFO L87 Difference]: Start difference. First operand 221 states and 315 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:09,209 INFO L93 Difference]: Finished difference Result 406 states and 583 transitions. [2024-11-28 04:17:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:09,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 151 [2024-11-28 04:17:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:09,213 INFO L225 Difference]: With dead ends: 406 [2024-11-28 04:17:09,215 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 04:17:09,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:17:09,218 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 85 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:09,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 704 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:17:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 04:17:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 224. [2024-11-28 04:17:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 186 states have internal predecessors, (250), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:17:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 318 transitions. [2024-11-28 04:17:09,257 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 318 transitions. Word has length 151 [2024-11-28 04:17:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:09,260 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 318 transitions. [2024-11-28 04:17:09,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 318 transitions. [2024-11-28 04:17:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:17:09,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:09,264 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:09,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:17:09,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:09,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1558883342, now seen corresponding path program 1 times [2024-11-28 04:17:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:09,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199821615] [2024-11-28 04:17:09,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199821615] [2024-11-28 04:17:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199821615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436747393] [2024-11-28 04:17:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:10,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:10,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:10,154 INFO L87 Difference]: Start difference. First operand 224 states and 318 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:10,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:10,320 INFO L93 Difference]: Finished difference Result 508 states and 721 transitions. [2024-11-28 04:17:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:10,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-11-28 04:17:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:10,323 INFO L225 Difference]: With dead ends: 508 [2024-11-28 04:17:10,324 INFO L226 Difference]: Without dead ends: 338 [2024-11-28 04:17:10,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:10,325 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:10,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 603 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-28 04:17:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 335. [2024-11-28 04:17:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 293 states have (on average 1.3686006825938566) internal successors, (401), 294 states have internal predecessors, (401), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:17:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 473 transitions. [2024-11-28 04:17:10,352 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 473 transitions. Word has length 151 [2024-11-28 04:17:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:10,352 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 473 transitions. [2024-11-28 04:17:10,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 473 transitions. [2024-11-28 04:17:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:17:10,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:10,354 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:10,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:17:10,354 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:10,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash 785571257, now seen corresponding path program 1 times [2024-11-28 04:17:10,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:10,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631510232] [2024-11-28 04:17:10,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:11,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:11,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631510232] [2024-11-28 04:17:11,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631510232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:11,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:11,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:17:11,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680573002] [2024-11-28 04:17:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:11,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:17:11,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:11,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:17:11,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:11,911 INFO L87 Difference]: Start difference. First operand 335 states and 473 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:12,247 INFO L93 Difference]: Finished difference Result 775 states and 1086 transitions. [2024-11-28 04:17:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:17:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-28 04:17:12,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:12,252 INFO L225 Difference]: With dead ends: 775 [2024-11-28 04:17:12,253 INFO L226 Difference]: Without dead ends: 498 [2024-11-28 04:17:12,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:17:12,255 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 101 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:12,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1121 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:17:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-28 04:17:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 495. [2024-11-28 04:17:12,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 435 states have (on average 1.3402298850574712) internal successors, (583), 438 states have internal predecessors, (583), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:17:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 685 transitions. [2024-11-28 04:17:12,318 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 685 transitions. Word has length 152 [2024-11-28 04:17:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:12,321 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 685 transitions. [2024-11-28 04:17:12,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 685 transitions. [2024-11-28 04:17:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 04:17:12,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:12,327 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:12,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:17:12,328 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:12,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash -428660984, now seen corresponding path program 1 times [2024-11-28 04:17:12,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:12,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127182981] [2024-11-28 04:17:12,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:12,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:13,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127182981] [2024-11-28 04:17:13,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127182981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:13,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:13,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:13,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256415148] [2024-11-28 04:17:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:13,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:13,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:13,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:13,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:13,088 INFO L87 Difference]: Start difference. First operand 495 states and 685 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:13,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:13,325 INFO L93 Difference]: Finished difference Result 1112 states and 1539 transitions. [2024-11-28 04:17:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:13,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-28 04:17:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:13,333 INFO L225 Difference]: With dead ends: 1112 [2024-11-28 04:17:13,333 INFO L226 Difference]: Without dead ends: 675 [2024-11-28 04:17:13,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:13,335 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 95 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:13,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1002 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-28 04:17:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 586. [2024-11-28 04:17:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 526 states have (on average 1.355513307984791) internal successors, (713), 529 states have internal predecessors, (713), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:17:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 815 transitions. [2024-11-28 04:17:13,392 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 815 transitions. Word has length 153 [2024-11-28 04:17:13,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:13,393 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 815 transitions. [2024-11-28 04:17:13,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 815 transitions. [2024-11-28 04:17:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:17:13,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:13,396 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:13,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:17:13,396 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:13,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 759379828, now seen corresponding path program 1 times [2024-11-28 04:17:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295089330] [2024-11-28 04:17:13,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:13,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:13,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295089330] [2024-11-28 04:17:13,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295089330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:13,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:17:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760915281] [2024-11-28 04:17:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:17:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:13,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:17:13,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:13,549 INFO L87 Difference]: Start difference. First operand 586 states and 815 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:13,609 INFO L93 Difference]: Finished difference Result 1123 states and 1572 transitions. [2024-11-28 04:17:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:17:13,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-11-28 04:17:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:13,614 INFO L225 Difference]: With dead ends: 1123 [2024-11-28 04:17:13,614 INFO L226 Difference]: Without dead ends: 595 [2024-11-28 04:17:13,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:13,616 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:13,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 325 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:13,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-28 04:17:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-28 04:17:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 535 states have (on average 1.3495327102803738) internal successors, (722), 538 states have internal predecessors, (722), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:17:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 824 transitions. [2024-11-28 04:17:13,670 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 824 transitions. Word has length 154 [2024-11-28 04:17:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:13,670 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 824 transitions. [2024-11-28 04:17:13,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 824 transitions. [2024-11-28 04:17:13,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:17:13,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:13,674 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:13,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:17:13,674 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:13,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash -818230971, now seen corresponding path program 1 times [2024-11-28 04:17:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:13,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093119618] [2024-11-28 04:17:13,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:15,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093119618] [2024-11-28 04:17:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093119618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:15,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:17:15,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122694808] [2024-11-28 04:17:15,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:17:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:15,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:17:15,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:15,010 INFO L87 Difference]: Start difference. First operand 595 states and 824 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:15,273 INFO L93 Difference]: Finished difference Result 617 states and 847 transitions. [2024-11-28 04:17:15,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:17:15,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2024-11-28 04:17:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:15,278 INFO L225 Difference]: With dead ends: 617 [2024-11-28 04:17:15,278 INFO L226 Difference]: Without dead ends: 615 [2024-11-28 04:17:15,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:17:15,280 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 87 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:15,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1058 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-28 04:17:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-28 04:17:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 553 states have (on average 1.3381555153707052) internal successors, (740), 556 states have internal predecessors, (740), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:17:15,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 842 transitions. [2024-11-28 04:17:15,344 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 842 transitions. Word has length 154 [2024-11-28 04:17:15,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:15,345 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 842 transitions. [2024-11-28 04:17:15,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 842 transitions. [2024-11-28 04:17:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:17:15,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:15,348 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:15,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:17:15,348 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash -816383929, now seen corresponding path program 1 times [2024-11-28 04:17:15,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:15,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901521226] [2024-11-28 04:17:15,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:15,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 04:17:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:17,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901521226] [2024-11-28 04:17:17,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901521226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:17:17,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53204399] [2024-11-28 04:17:17,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:17,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:17:17,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:17:17,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:17:17,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:17:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:17,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:17:17,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:17,812 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 27 treesize of output 15 [2024-11-28 04:17:17,866 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 31 treesize of output 15 [2024-11-28 04:17:18,133 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 29 treesize of output 13 [2024-11-28 04:17:18,263 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 29 treesize of output 13 [2024-11-28 04:17:18,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:17:18,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 [2024-11-28 04:17:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:17:18,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:17:19,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 21 [2024-11-28 04:17:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 04:17:19,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53204399] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:17:19,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:17:19,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22 [2024-11-28 04:17:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035194090] [2024-11-28 04:17:19,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:17:19,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:17:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:19,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:17:19,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:17:19,446 INFO L87 Difference]: Start difference. First operand 615 states and 842 transitions. Second operand has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) [2024-11-28 04:17:22,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:22,208 INFO L93 Difference]: Finished difference Result 1693 states and 2299 transitions. [2024-11-28 04:17:22,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:17:22,209 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) Word has length 154 [2024-11-28 04:17:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:22,219 INFO L225 Difference]: With dead ends: 1693 [2024-11-28 04:17:22,220 INFO L226 Difference]: Without dead ends: 1136 [2024-11-28 04:17:22,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:17:22,223 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 325 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:22,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1545 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:17:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-28 04:17:22,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1062. [2024-11-28 04:17:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 958 states have (on average 1.3277661795407099) internal successors, (1272), 964 states have internal predecessors, (1272), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:17:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1438 transitions. [2024-11-28 04:17:22,359 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1438 transitions. Word has length 154 [2024-11-28 04:17:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:22,359 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1438 transitions. [2024-11-28 04:17:22,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) [2024-11-28 04:17:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1438 transitions. [2024-11-28 04:17:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:17:22,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:22,362 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:22,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:17:22,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:17:22,567 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:22,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash -738109405, now seen corresponding path program 1 times [2024-11-28 04:17:22,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:22,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209684882] [2024-11-28 04:17:22,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:23,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:23,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209684882] [2024-11-28 04:17:23,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209684882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:23,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:23,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:23,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043615905] [2024-11-28 04:17:23,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:23,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:23,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:23,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:23,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:23,361 INFO L87 Difference]: Start difference. First operand 1062 states and 1438 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:23,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:23,628 INFO L93 Difference]: Finished difference Result 1716 states and 2326 transitions. [2024-11-28 04:17:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:23,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2024-11-28 04:17:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:23,636 INFO L225 Difference]: With dead ends: 1716 [2024-11-28 04:17:23,636 INFO L226 Difference]: Without dead ends: 1159 [2024-11-28 04:17:23,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:23,638 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 160 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:23,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 813 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-28 04:17:23,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1064. [2024-11-28 04:17:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 960 states have (on average 1.3270833333333334) internal successors, (1274), 966 states have internal predecessors, (1274), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:17:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1440 transitions. [2024-11-28 04:17:23,759 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1440 transitions. Word has length 155 [2024-11-28 04:17:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:23,760 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1440 transitions. [2024-11-28 04:17:23,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1440 transitions. [2024-11-28 04:17:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:17:23,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:23,763 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:23,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:17:23,764 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:23,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:23,765 INFO L85 PathProgramCache]: Analyzing trace with hash -519254687, now seen corresponding path program 1 times [2024-11-28 04:17:23,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:23,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260031296] [2024-11-28 04:17:23,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:24,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:24,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260031296] [2024-11-28 04:17:24,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260031296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:24,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:24,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:17:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428951354] [2024-11-28 04:17:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:24,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:17:24,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:24,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:17:24,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:24,310 INFO L87 Difference]: Start difference. First operand 1064 states and 1440 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:24,763 INFO L93 Difference]: Finished difference Result 2353 states and 3182 transitions. [2024-11-28 04:17:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:24,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-28 04:17:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:24,772 INFO L225 Difference]: With dead ends: 2353 [2024-11-28 04:17:24,772 INFO L226 Difference]: Without dead ends: 1351 [2024-11-28 04:17:24,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:17:24,775 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 148 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:24,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1075 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:17:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-11-28 04:17:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1147. [2024-11-28 04:17:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1043 states have (on average 1.3231064237775647) internal successors, (1380), 1049 states have internal predecessors, (1380), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:17:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1546 transitions. [2024-11-28 04:17:24,906 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1546 transitions. Word has length 155 [2024-11-28 04:17:24,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:24,907 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1546 transitions. [2024-11-28 04:17:24,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1546 transitions. [2024-11-28 04:17:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:17:24,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:24,911 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:24,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:17:24,911 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:24,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:24,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1730192716, now seen corresponding path program 1 times [2024-11-28 04:17:24,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:24,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027408824] [2024-11-28 04:17:24,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:26,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:26,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027408824] [2024-11-28 04:17:26,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027408824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:26,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:26,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:17:26,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649258175] [2024-11-28 04:17:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:26,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:17:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:26,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:17:26,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:26,593 INFO L87 Difference]: Start difference. First operand 1147 states and 1546 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:27,711 INFO L93 Difference]: Finished difference Result 2589 states and 3485 transitions. [2024-11-28 04:17:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:17:27,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2024-11-28 04:17:27,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:27,722 INFO L225 Difference]: With dead ends: 2589 [2024-11-28 04:17:27,722 INFO L226 Difference]: Without dead ends: 1587 [2024-11-28 04:17:27,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:17:27,729 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 262 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:27,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 712 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:17:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-28 04:17:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1354. [2024-11-28 04:17:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1249 states have (on average 1.3290632506004805) internal successors, (1660), 1255 states have internal predecessors, (1660), 83 states have call successors, (83), 21 states have call predecessors, (83), 21 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:17:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1826 transitions. [2024-11-28 04:17:27,877 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1826 transitions. Word has length 156 [2024-11-28 04:17:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:27,878 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1826 transitions. [2024-11-28 04:17:27,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1826 transitions. [2024-11-28 04:17:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:17:27,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:27,883 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:27,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:17:27,883 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:27,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:27,885 INFO L85 PathProgramCache]: Analyzing trace with hash 302901733, now seen corresponding path program 1 times [2024-11-28 04:17:27,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:27,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784402367] [2024-11-28 04:17:27,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:27,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:27,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:27,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784402367] [2024-11-28 04:17:27,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784402367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:27,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:27,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:17:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576323132] [2024-11-28 04:17:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:28,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:17:28,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:28,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:17:28,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:28,002 INFO L87 Difference]: Start difference. First operand 1354 states and 1826 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:28,135 INFO L93 Difference]: Finished difference Result 2550 states and 3463 transitions. [2024-11-28 04:17:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:17:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-11-28 04:17:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:28,143 INFO L225 Difference]: With dead ends: 2550 [2024-11-28 04:17:28,144 INFO L226 Difference]: Without dead ends: 1366 [2024-11-28 04:17:28,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:17:28,147 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:28,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 324 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:28,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-11-28 04:17:28,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2024-11-28 04:17:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1261 states have (on average 1.3259318001586042) internal successors, (1672), 1267 states have internal predecessors, (1672), 83 states have call successors, (83), 21 states have call predecessors, (83), 21 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:17:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1838 transitions. [2024-11-28 04:17:28,276 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1838 transitions. Word has length 156 [2024-11-28 04:17:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:28,277 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1838 transitions. [2024-11-28 04:17:28,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1838 transitions. [2024-11-28 04:17:28,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:17:28,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:28,280 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:28,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:17:28,281 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:28,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:28,281 INFO L85 PathProgramCache]: Analyzing trace with hash 886187214, now seen corresponding path program 1 times [2024-11-28 04:17:28,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:28,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186739490] [2024-11-28 04:17:28,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:28,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:28,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:28,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186739490] [2024-11-28 04:17:28,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186739490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:28,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:28,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:28,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725598786] [2024-11-28 04:17:28,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:28,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:17:28,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:28,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:17:28,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:28,779 INFO L87 Difference]: Start difference. First operand 1366 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:29,133 INFO L93 Difference]: Finished difference Result 2307 states and 3121 transitions. [2024-11-28 04:17:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:17:29,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-11-28 04:17:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:29,140 INFO L225 Difference]: With dead ends: 2307 [2024-11-28 04:17:29,141 INFO L226 Difference]: Without dead ends: 1090 [2024-11-28 04:17:29,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:17:29,146 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 108 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:29,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 395 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:17:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-28 04:17:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1058. [2024-11-28 04:17:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 969 states have (on average 1.3188854489164086) internal successors, (1278), 973 states have internal predecessors, (1278), 70 states have call successors, (70), 18 states have call predecessors, (70), 18 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:17:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1418 transitions. [2024-11-28 04:17:29,227 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1418 transitions. Word has length 156 [2024-11-28 04:17:29,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:29,228 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1418 transitions. [2024-11-28 04:17:29,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1418 transitions. [2024-11-28 04:17:29,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:17:29,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:29,231 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:29,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:17:29,231 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:29,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:29,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1097533132, now seen corresponding path program 1 times [2024-11-28 04:17:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541853891] [2024-11-28 04:17:29,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:29,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:29,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:29,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541853891] [2024-11-28 04:17:29,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541853891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:29,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:29,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:29,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683544426] [2024-11-28 04:17:29,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:29,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:29,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:29,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:29,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:29,713 INFO L87 Difference]: Start difference. First operand 1058 states and 1418 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:29,900 INFO L93 Difference]: Finished difference Result 1713 states and 2302 transitions. [2024-11-28 04:17:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:29,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2024-11-28 04:17:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:29,907 INFO L225 Difference]: With dead ends: 1713 [2024-11-28 04:17:29,907 INFO L226 Difference]: Without dead ends: 1124 [2024-11-28 04:17:29,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:29,910 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 170 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:29,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 616 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-28 04:17:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1026. [2024-11-28 04:17:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 937 states have (on average 1.3116328708644611) internal successors, (1229), 941 states have internal predecessors, (1229), 70 states have call successors, (70), 18 states have call predecessors, (70), 18 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:17:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1369 transitions. [2024-11-28 04:17:30,007 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1369 transitions. Word has length 156 [2024-11-28 04:17:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:30,007 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1369 transitions. [2024-11-28 04:17:30,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1369 transitions. [2024-11-28 04:17:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 04:17:30,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:30,010 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:30,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:17:30,011 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:30,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1823122110, now seen corresponding path program 1 times [2024-11-28 04:17:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918610994] [2024-11-28 04:17:30,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:17:30,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918610994] [2024-11-28 04:17:30,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918610994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:30,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:30,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:17:30,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969497522] [2024-11-28 04:17:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:17:30,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:17:30,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:17:30,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:30,976 INFO L87 Difference]: Start difference. First operand 1026 states and 1369 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:31,905 INFO L93 Difference]: Finished difference Result 2371 states and 3168 transitions. [2024-11-28 04:17:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:17:31,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 158 [2024-11-28 04:17:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:31,915 INFO L225 Difference]: With dead ends: 2371 [2024-11-28 04:17:31,915 INFO L226 Difference]: Without dead ends: 1468 [2024-11-28 04:17:31,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:17:31,918 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 482 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:31,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 878 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:17:31,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-28 04:17:32,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1289. [2024-11-28 04:17:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1176 states have (on average 1.2976190476190477) internal successors, (1526), 1182 states have internal predecessors, (1526), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (89), 83 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 04:17:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1704 transitions. [2024-11-28 04:17:32,035 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1704 transitions. Word has length 158 [2024-11-28 04:17:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:32,037 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1704 transitions. [2024-11-28 04:17:32,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1704 transitions. [2024-11-28 04:17:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 04:17:32,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:32,040 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:32,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:17:32,041 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:32,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:32,041 INFO L85 PathProgramCache]: Analyzing trace with hash -242467503, now seen corresponding path program 1 times [2024-11-28 04:17:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:17:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905431955] [2024-11-28 04:17:32,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:17:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:17:32,200 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:17:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:17:32,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:17:32,491 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:17:32,492 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:17:32,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:17:32,499 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:32,676 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:17:32,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:17:32 BoogieIcfgContainer [2024-11-28 04:17:32,682 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:17:32,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:17:32,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:17:32,683 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:17:32,684 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:58" (3/4) ... [2024-11-28 04:17:32,688 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:17:32,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:17:32,690 INFO L158 Benchmark]: Toolchain (without parser) took 35747.40ms. Allocated memory was 117.4MB in the beginning and 604.0MB in the end (delta: 486.5MB). Free memory was 91.0MB in the beginning and 539.8MB in the end (delta: -448.7MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,693 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:17:32,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.16ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 75.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.66ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 71.8MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:17:32,694 INFO L158 Benchmark]: Boogie Preprocessor took 132.03ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 67.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,694 INFO L158 Benchmark]: RCFGBuilder took 1259.13ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 83.9MB in the end (delta: -16.7MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,694 INFO L158 Benchmark]: TraceAbstraction took 33859.28ms. Allocated memory was 117.4MB in the beginning and 604.0MB in the end (delta: 486.5MB). Free memory was 83.3MB in the beginning and 539.8MB in the end (delta: -456.5MB). Peak memory consumption was 362.8MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,694 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 604.0MB. Free memory was 539.8MB in the beginning and 539.8MB in the end (delta: 53.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:32,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.16ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 75.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.66ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 71.8MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 132.03ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 67.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1259.13ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 83.9MB in the end (delta: -16.7MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * TraceAbstraction took 33859.28ms. Allocated memory was 117.4MB in the beginning and 604.0MB in the end (delta: 486.5MB). Free memory was 83.3MB in the beginning and 539.8MB in the end (delta: -456.5MB). Peak memory consumption was 362.8MB. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 604.0MB. Free memory was 539.8MB in the beginning and 539.8MB in the end (delta: 53.6kB). 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 82, overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseOr at line 108, overapproximation of bitwiseOr at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 64 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 64 }; [L34-L36] signed short int signed_short_int_Array_0[1] = { -16 }; [L34-L36] signed short int signed_short_int_Array_0[1] = { -16 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L43] signed short int last_1_signed_short_int_Array_0_0_ = -16; [L44] unsigned char last_1_unsigned_char_Array_0_0_ = 0; [L45] unsigned long int last_1_unsigned_long_int_Array_0_0__1_ = 25; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L112] isInitial = 1 [L113] FCALL initially() [L115] CALL updateLastVariables() [L103] EXPR signed_short_int_Array_0[0] [L103] last_1_signed_short_int_Array_0_0_ = signed_short_int_Array_0[0] [L104] EXPR unsigned_char_Array_0[0] [L104] last_1_unsigned_char_Array_0_0_ = unsigned_char_Array_0[0] [L105] EXPR unsigned_long_int_Array_0[0][1] [L105] last_1_unsigned_long_int_Array_0_0__1_ = unsigned_long_int_Array_0[0][1] [L115] RET updateLastVariables() [L116] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L81] float_Array_0[1] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[1] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L82] EXPR float_Array_0[1] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L83] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L84] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L84] RET assume_abort_if_not(signed_char_Array_0[0][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L86] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L87] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L89] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L90] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L90] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L90] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L92] unsigned_long_int_Array_0[0][0] = __VERIFIER_nondet_ulong() [L93] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L93] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L93] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L95] unsigned_long_int_Array_0[1][0] = __VERIFIER_nondet_ulong() [L96] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L96] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L96] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L98] unsigned_long_int_Array_0[1][1] = __VERIFIER_nondet_ulong() [L99] EXPR unsigned_long_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L99] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L99] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] EXPR unsigned_long_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L116] RET updateVariables() [L117] CALL step() [L49] EXPR last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_ VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] [L49] EXPR BOOL_unsigned_char_Array_0[1] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] COND FALSE !(((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) [L56] EXPR signed_char_Array_0[0][1] [L56] signed_char_Array_0[1][1] = signed_char_Array_0[0][1] [L58] BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L58] COND FALSE !(BOOL_unsigned_char_Array_0[1]) [L61] EXPR unsigned_long_int_Array_0[0][0] [L61] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L61] COND TRUE unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0] [L62] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L62] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) [L62] EXPR signed_char_Array_0[1][0] [L62] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L62] signed_long_int_Array_0[0] = ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))) [L64] signed_short_int_Array_0[0] = 2 [L65] EXPR float_Array_0[1] [L65] float_Array_0[0] = float_Array_0[1] [L66] EXPR unsigned_char_Array_0[1] [L66] unsigned_char_Array_0[0] = unsigned_char_Array_0[1] [L67] EXPR signed_char_Array_0[1][0] [L67] EXPR signed_char_Array_0[1][1] [L67] unsigned char stepLocal_0 = signed_char_Array_0[1][0] < signed_char_Array_0[1][1]; [L68] stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L68] stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L68] COND FALSE !(stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) [L71] EXPR unsigned_long_int_Array_0[1][1] [L71] EXPR unsigned_long_int_Array_0[1][0] [L71] unsigned_long_int_Array_0[0][1] = (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]) [L117] RET step() [L118] CALL, EXPR property() [L108] EXPR last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_ VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] [L108] EXPR BOOL_unsigned_char_Array_0[1] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) [L108] EXPR signed_char_Array_0[1][1] [L108] EXPR signed_char_Array_0[0][1] [L108] EXPR (((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) [L108] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1 [L108] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) [L108] EXPR signed_char_Array_0[1][0] [L108] EXPR signed_char_Array_0[1][1] [L108] EXPR (signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))) [L108] EXPR unsigned_long_int_Array_0[0][1] [L108] EXPR unsigned_long_int_Array_0[1][1] [L108] EXPR unsigned_long_int_Array_0[1][0] [L108] EXPR ((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) [L108] EXPR unsigned_long_int_Array_0[0][0] [L108] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1 [L108] EXPR signed_long_int_Array_0[0] [L108] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) [L108] EXPR signed_char_Array_0[1][0] [L108] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) [L108] EXPR signed_short_int_Array_0[0] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) [L108] EXPR float_Array_0[0] [L108] EXPR float_Array_0[1] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108-L109] return (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 25, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2646 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2638 mSDsluCounter, 15819 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11665 mSDsCounter, 465 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3565 IncrementalHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 465 mSolverCounterUnsat, 4154 mSDtfsCounter, 3565 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 670 SyntacticMatches, 3 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1366occurred in iteration=21, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 24 MinimizatonAttempts, 1142 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 4213 NumberOfCodeBlocks, 4213 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 4181 ConstructedInterpolants, 0 QuantifiedInterpolants, 16128 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1557 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 15116/15232 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:17:32,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/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_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB --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 ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:17:35,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:17:36,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:17:36,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:17:36,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:17:36,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:17:36,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:17:36,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:17:36,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:17:36,176 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:17:36,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:17:36,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:17:36,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:17:36,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:17:36,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:17:36,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:17:36,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:17:36,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:17:36,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:17:36,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:17:36,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:17:36,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:17:36,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:17:36,180 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:17:36,181 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:17:36,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:36,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:36,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:17:36,182 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:17:36,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:17:36,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:17:36,184 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_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 [2024-11-28 04:17:36,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:17:36,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:17:36,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:17:36,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:17:36,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:17:36,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:17:40,062 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/823793828/6cac57b5900a44b2a88583c7c9afd608/FLAG7caea0402 [2024-11-28 04:17:40,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:17:40,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:17:40,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/823793828/6cac57b5900a44b2a88583c7c9afd608/FLAG7caea0402 [2024-11-28 04:17:40,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/data/823793828/6cac57b5900a44b2a88583c7c9afd608 [2024-11-28 04:17:40,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:17:40,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:17:40,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:17:40,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:17:40,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:17:40,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:17:40" (1/1) ... [2024-11-28 04:17:40,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b7da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:40, skipping insertion in model container [2024-11-28 04:17:40,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:17:40" (1/1) ... [2024-11-28 04:17:40,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:17:40,746 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_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-11-28 04:17:40,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:17:40,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:17:40,918 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_3c48918f-d516-427e-aae5-aa4711d397ef/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-11-28 04:17:40,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:17:41,032 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:17:41,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41 WrapperNode [2024-11-28 04:17:41,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:17:41,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:17:41,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:17:41,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:17:41,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,117 INFO L138 Inliner]: procedures = 36, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 510 [2024-11-28 04:17:41,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:17:41,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:17:41,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:17:41,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:17:41,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,175 INFO L175 MemorySlicer]: Split 134 memory accesses to 8 slices as follows [2, 16, 11, 54, 3, 4, 10, 34]. 40 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 4, 1, 1, 2, 4]. The 19 writes are split as follows [0, 2, 2, 6, 1, 1, 2, 5]. [2024-11-28 04:17:41,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,250 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:17:41,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:17:41,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:17:41,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:17:41,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (1/1) ... [2024-11-28 04:17:41,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:17:41,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:17:41,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:17:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:17:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:17:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:17:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:17:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-28 04:17:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:17:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-28 04:17:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-28 04:17:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 04:17:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-28 04:17:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 04:17:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-28 04:17:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-28 04:17:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:17:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:17:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:17:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:17:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 04:17:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 04:17:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-28 04:17:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-28 04:17:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-28 04:17:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-28 04:17:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:17:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:17:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 04:17:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 04:17:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-28 04:17:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-28 04:17:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-28 04:17:41,748 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:17:41,750 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:17:42,727 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-28 04:17:42,727 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:17:42,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:17:42,742 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:17:42,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:17:42 BoogieIcfgContainer [2024-11-28 04:17:42,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:17:42,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:17:42,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:17:42,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:17:42,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:17:40" (1/3) ... [2024-11-28 04:17:42,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1820f17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:17:42, skipping insertion in model container [2024-11-28 04:17:42,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:41" (2/3) ... [2024-11-28 04:17:42,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1820f17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:17:42, skipping insertion in model container [2024-11-28 04:17:42,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:17:42" (3/3) ... [2024-11-28 04:17:42,756 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-88.i [2024-11-28 04:17:42,776 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:17:42,778 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-88.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:17:42,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:17:42,901 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;@285deccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:17:42,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:17:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:17:42,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:42,934 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:42,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:42,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:42,943 INFO L85 PathProgramCache]: Analyzing trace with hash 441684127, now seen corresponding path program 1 times [2024-11-28 04:17:42,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:42,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377315311] [2024-11-28 04:17:42,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:42,964 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 [2024-11-28 04:17:42,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:42,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:42,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:43,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:17:43,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 04:17:43,511 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:43,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377315311] [2024-11-28 04:17:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377315311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:43,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:17:43,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797076084] [2024-11-28 04:17:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:43,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:17:43,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:43,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:17:43,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:17:43,560 INFO L87 Difference]: Start difference. First operand has 111 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:43,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:43,611 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2024-11-28 04:17:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:17:43,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 04:17:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:43,622 INFO L225 Difference]: With dead ends: 215 [2024-11-28 04:17:43,623 INFO L226 Difference]: Without dead ends: 107 [2024-11-28 04:17:43,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:17:43,631 INFO L435 NwaCegarLoop]: 156 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, 156 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 [2024-11-28 04:17:43,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-28 04:17:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-28 04:17:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2024-11-28 04:17:43,698 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 139 [2024-11-28 04:17:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:43,699 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2024-11-28 04:17:43,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2024-11-28 04:17:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:17:43,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:43,706 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:43,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:43,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:43,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:43,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1135899215, now seen corresponding path program 1 times [2024-11-28 04:17:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:43,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504305915] [2024-11-28 04:17:43,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:43,909 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 [2024-11-28 04:17:43,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:43,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:43,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:44,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:17:44,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:44,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:44,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:44,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504305915] [2024-11-28 04:17:44,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504305915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:44,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:44,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:17:44,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871030621] [2024-11-28 04:17:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:44,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:17:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:44,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:17:44,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:44,447 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:44,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:44,570 INFO L93 Difference]: Finished difference Result 218 states and 319 transitions. [2024-11-28 04:17:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:17:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 04:17:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:44,573 INFO L225 Difference]: With dead ends: 218 [2024-11-28 04:17:44,573 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 04:17:44,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:17:44,575 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:44,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 724 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:44,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 04:17:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-28 04:17:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:44,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 162 transitions. [2024-11-28 04:17:44,591 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 162 transitions. Word has length 139 [2024-11-28 04:17:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:44,593 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 162 transitions. [2024-11-28 04:17:44,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 162 transitions. [2024-11-28 04:17:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:17:44,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:44,597 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:44,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:17:44,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:44,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:44,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -455840845, now seen corresponding path program 1 times [2024-11-28 04:17:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864851657] [2024-11-28 04:17:44,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:44,804 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 [2024-11-28 04:17:44,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:44,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:44,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:45,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:17:45,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:45,372 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:45,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:45,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864851657] [2024-11-28 04:17:45,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864851657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:45,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:45,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:17:45,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309891181] [2024-11-28 04:17:45,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:45,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:17:45,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:45,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:17:45,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:45,378 INFO L87 Difference]: Start difference. First operand 113 states and 162 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:45,567 INFO L93 Difference]: Finished difference Result 228 states and 328 transitions. [2024-11-28 04:17:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:17:45,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 04:17:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:45,574 INFO L225 Difference]: With dead ends: 228 [2024-11-28 04:17:45,574 INFO L226 Difference]: Without dead ends: 118 [2024-11-28 04:17:45,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:17:45,576 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:45,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 992 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-28 04:17:45,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-28 04:17:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.346938775510204) internal successors, (132), 98 states have internal predecessors, (132), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:17:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2024-11-28 04:17:45,594 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 139 [2024-11-28 04:17:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:45,598 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2024-11-28 04:17:45,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2024-11-28 04:17:45,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:17:45,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:45,607 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:45,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:17:45,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:45,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:45,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash -453993803, now seen corresponding path program 1 times [2024-11-28 04:17:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061793520] [2024-11-28 04:17:45,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:45,810 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 [2024-11-28 04:17:45,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:45,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:45,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:46,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:17:46,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:46,543 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 26 treesize of output 14 [2024-11-28 04:17:46,621 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 30 treesize of output 14 [2024-11-28 04:17:46,760 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 [2024-11-28 04:17:46,980 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 27 treesize of output 11 [2024-11-28 04:17:47,175 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 27 treesize of output 11 [2024-11-28 04:17:47,389 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 30 treesize of output 14 [2024-11-28 04:17:47,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 7 [2024-11-28 04:17:47,452 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 21 treesize of output 9 [2024-11-28 04:17:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:17:47,485 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:17:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 04:17:48,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:48,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061793520] [2024-11-28 04:17:48,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061793520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:17:48,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:17:48,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-11-28 04:17:48,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390608406] [2024-11-28 04:17:48,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:17:48,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:17:48,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:48,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:17:48,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:17:48,124 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 04:17:50,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:50,456 INFO L93 Difference]: Finished difference Result 353 states and 499 transitions. [2024-11-28 04:17:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:17:50,457 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 139 [2024-11-28 04:17:50,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:50,460 INFO L225 Difference]: With dead ends: 353 [2024-11-28 04:17:50,460 INFO L226 Difference]: Without dead ends: 239 [2024-11-28 04:17:50,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:17:50,462 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 392 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:50,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 951 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:17:50,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-28 04:17:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 231. [2024-11-28 04:17:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 193 states have (on average 1.3419689119170986) internal successors, (259), 193 states have internal predecessors, (259), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:17:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2024-11-28 04:17:50,507 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 139 [2024-11-28 04:17:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:50,509 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2024-11-28 04:17:50,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 04:17:50,512 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2024-11-28 04:17:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:17:50,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:50,517 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:50,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:50,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:50,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:50,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:50,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2021328912, now seen corresponding path program 1 times [2024-11-28 04:17:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949123393] [2024-11-28 04:17:50,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:50,724 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 [2024-11-28 04:17:50,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:50,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:50,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:51,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:17:51,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:51,316 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 26 treesize of output 14 [2024-11-28 04:17:51,389 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 25 treesize of output 24 [2024-11-28 04:17:52,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:17:52,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 42 treesize of output 38 [2024-11-28 04:17:52,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:17:52,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 46 [2024-11-28 04:17:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:17:52,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:52,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949123393] [2024-11-28 04:17:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949123393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:52,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:17:52,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271496046] [2024-11-28 04:17:52,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:52,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:17:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:52,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:17:52,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:17:52,880 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:54,682 INFO L93 Difference]: Finished difference Result 567 states and 798 transitions. [2024-11-28 04:17:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:17:54,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-28 04:17:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:54,687 INFO L225 Difference]: With dead ends: 567 [2024-11-28 04:17:54,687 INFO L226 Difference]: Without dead ends: 339 [2024-11-28 04:17:54,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:17:54,689 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 304 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:54,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 940 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:17:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-28 04:17:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 258. [2024-11-28 04:17:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 212 states have (on average 1.3254716981132075) internal successors, (281), 213 states have internal predecessors, (281), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 04:17:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 363 transitions. [2024-11-28 04:17:54,733 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 363 transitions. Word has length 141 [2024-11-28 04:17:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:54,734 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 363 transitions. [2024-11-28 04:17:54,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:17:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 363 transitions. [2024-11-28 04:17:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:17:54,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:54,737 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:54,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:54,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:54,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:54,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2019873618, now seen corresponding path program 1 times [2024-11-28 04:17:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702434730] [2024-11-28 04:17:54,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:54,944 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 [2024-11-28 04:17:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:54,946 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:54,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:55,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:17:55,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:17:55,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:17:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:55,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702434730] [2024-11-28 04:17:55,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702434730] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:17:55,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:17:55,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:17:55,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557841401] [2024-11-28 04:17:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:55,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:55,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:55,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:55,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:17:55,951 INFO L87 Difference]: Start difference. First operand 258 states and 363 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:56,113 INFO L93 Difference]: Finished difference Result 523 states and 730 transitions. [2024-11-28 04:17:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:56,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 04:17:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:56,124 INFO L225 Difference]: With dead ends: 523 [2024-11-28 04:17:56,125 INFO L226 Difference]: Without dead ends: 409 [2024-11-28 04:17:56,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:17:56,127 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 170 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:56,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 468 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-28 04:17:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2024-11-28 04:17:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 352 states have (on average 1.3409090909090908) internal successors, (472), 355 states have internal predecessors, (472), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:17:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 562 transitions. [2024-11-28 04:17:56,186 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 562 transitions. Word has length 141 [2024-11-28 04:17:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:56,187 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 562 transitions. [2024-11-28 04:17:56,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 562 transitions. [2024-11-28 04:17:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:17:56,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:56,189 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:56,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:17:56,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:56,393 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:56,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1997241364, now seen corresponding path program 1 times [2024-11-28 04:17:56,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:56,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752486471] [2024-11-28 04:17:56,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:56,395 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 [2024-11-28 04:17:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:56,397 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:56,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:56,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:17:56,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:56,721 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 17 treesize of output 9 [2024-11-28 04:17:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:57,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:57,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:57,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752486471] [2024-11-28 04:17:57,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752486471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:57,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:57,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:17:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436266621] [2024-11-28 04:17:57,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:57,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:57,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:57,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:17:57,009 INFO L87 Difference]: Start difference. First operand 405 states and 562 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:57,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:57,294 INFO L93 Difference]: Finished difference Result 1008 states and 1399 transitions. [2024-11-28 04:17:57,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:57,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 04:17:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:57,299 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 04:17:57,300 INFO L226 Difference]: Without dead ends: 630 [2024-11-28 04:17:57,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:17:57,302 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 145 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:57,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 598 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:17:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-28 04:17:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 436. [2024-11-28 04:17:57,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 371 states have (on average 1.3234501347708896) internal successors, (491), 373 states have internal predecessors, (491), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:17:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 601 transitions. [2024-11-28 04:17:57,376 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 601 transitions. Word has length 141 [2024-11-28 04:17:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:57,376 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 601 transitions. [2024-11-28 04:17:57,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 601 transitions. [2024-11-28 04:17:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:57,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:57,381 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:57,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:17:57,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:57,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:57,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:57,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1840872162, now seen corresponding path program 1 times [2024-11-28 04:17:57,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:57,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708708338] [2024-11-28 04:17:57,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:57,583 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 [2024-11-28 04:17:57,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:57,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:57,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:57,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:17:57,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:57,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:17:57,965 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:57,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708708338] [2024-11-28 04:17:57,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708708338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:17:57,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:17:57,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:17:57,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112091141] [2024-11-28 04:17:57,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:57,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:57,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:57,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:57,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:17:57,968 INFO L87 Difference]: Start difference. First operand 436 states and 601 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:58,052 INFO L93 Difference]: Finished difference Result 826 states and 1143 transitions. [2024-11-28 04:17:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:58,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:58,057 INFO L225 Difference]: With dead ends: 826 [2024-11-28 04:17:58,059 INFO L226 Difference]: Without dead ends: 448 [2024-11-28 04:17:58,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:17:58,062 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:58,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:17:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-28 04:17:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-28 04:17:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 383 states have (on average 1.3133159268929504) internal successors, (503), 385 states have internal predecessors, (503), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:17:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 613 transitions. [2024-11-28 04:17:58,134 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 613 transitions. Word has length 143 [2024-11-28 04:17:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 613 transitions. [2024-11-28 04:17:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 613 transitions. [2024-11-28 04:17:58,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:58,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:58,137 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:58,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:58,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:17:58,338 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:17:58,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1264874310, now seen corresponding path program 1 times [2024-11-28 04:17:58,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:58,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596500472] [2024-11-28 04:17:58,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:58,339 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 [2024-11-28 04:17:58,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:17:58,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:17:58,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:17:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:58,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:17:58,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:17:59,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:17:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:17:59,588 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:17:59,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596500472] [2024-11-28 04:17:59,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596500472] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:17:59,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:17:59,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-28 04:17:59,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35528411] [2024-11-28 04:17:59,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:17:59,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:17:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:17:59,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:17:59,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:17:59,591 INFO L87 Difference]: Start difference. First operand 448 states and 613 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:59,804 INFO L93 Difference]: Finished difference Result 993 states and 1361 transitions. [2024-11-28 04:17:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:17:59,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:17:59,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:59,809 INFO L225 Difference]: With dead ends: 993 [2024-11-28 04:17:59,809 INFO L226 Difference]: Without dead ends: 603 [2024-11-28 04:17:59,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:17:59,811 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 82 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:59,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 695 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:17:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-28 04:17:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 483. [2024-11-28 04:17:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 418 states have (on average 1.325358851674641) internal successors, (554), 420 states have internal predecessors, (554), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:17:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 664 transitions. [2024-11-28 04:17:59,858 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 664 transitions. Word has length 143 [2024-11-28 04:17:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:59,859 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 664 transitions. [2024-11-28 04:17:59,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:17:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 664 transitions. [2024-11-28 04:17:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:17:59,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:59,862 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:17:59,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:18:00,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:00,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash -729270396, now seen corresponding path program 1 times [2024-11-28 04:18:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649622115] [2024-11-28 04:18:00,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:00,067 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 [2024-11-28 04:18:00,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:00,072 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:00,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:00,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:18:00,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:00,402 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 17 treesize of output 9 [2024-11-28 04:18:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:00,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:00,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:00,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649622115] [2024-11-28 04:18:00,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649622115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:00,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:00,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:18:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975567740] [2024-11-28 04:18:00,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:00,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:00,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:00,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:00,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:00,683 INFO L87 Difference]: Start difference. First operand 483 states and 664 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:00,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:00,902 INFO L93 Difference]: Finished difference Result 1061 states and 1464 transitions. [2024-11-28 04:18:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:18:00,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 04:18:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:00,906 INFO L225 Difference]: With dead ends: 1061 [2024-11-28 04:18:00,907 INFO L226 Difference]: Without dead ends: 636 [2024-11-28 04:18:00,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:00,909 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 130 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:00,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 595 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:18:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-28 04:18:00,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 533. [2024-11-28 04:18:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 468 states have (on average 1.3354700854700854) internal successors, (625), 470 states have internal predecessors, (625), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:18:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 735 transitions. [2024-11-28 04:18:00,959 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 735 transitions. Word has length 143 [2024-11-28 04:18:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:00,960 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 735 transitions. [2024-11-28 04:18:00,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 735 transitions. [2024-11-28 04:18:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:18:00,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:00,962 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:00,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:18:01,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:01,163 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:01,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 500859744, now seen corresponding path program 1 times [2024-11-28 04:18:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:01,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458027809] [2024-11-28 04:18:01,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:01,164 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 [2024-11-28 04:18:01,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:01,166 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:01,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:01,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:18:01,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:18:01,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:02,212 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:02,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458027809] [2024-11-28 04:18:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458027809] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:02,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:02,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:18:02,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140053494] [2024-11-28 04:18:02,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:02,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:02,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:02,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:02,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:18:02,214 INFO L87 Difference]: Start difference. First operand 533 states and 735 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:02,398 INFO L93 Difference]: Finished difference Result 1070 states and 1470 transitions. [2024-11-28 04:18:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:02,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 04:18:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:02,403 INFO L225 Difference]: With dead ends: 1070 [2024-11-28 04:18:02,404 INFO L226 Difference]: Without dead ends: 645 [2024-11-28 04:18:02,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:18:02,406 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 71 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:02,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 571 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:18:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-28 04:18:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 535. [2024-11-28 04:18:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 470 states have (on average 1.3297872340425532) internal successors, (625), 472 states have internal predecessors, (625), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:18:02,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 735 transitions. [2024-11-28 04:18:02,450 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 735 transitions. Word has length 144 [2024-11-28 04:18:02,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:02,450 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 735 transitions. [2024-11-28 04:18:02,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 735 transitions. [2024-11-28 04:18:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:18:02,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:02,453 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:02,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:18:02,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:02,654 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:02,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1910721159, now seen corresponding path program 1 times [2024-11-28 04:18:02,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:02,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091247238] [2024-11-28 04:18:02,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:02,656 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 [2024-11-28 04:18:02,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:02,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:02,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:02,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:18:03,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:18:03,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:03,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091247238] [2024-11-28 04:18:03,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091247238] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:03,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:03,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:18:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653014894] [2024-11-28 04:18:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:03,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:03,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:03,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:18:03,727 INFO L87 Difference]: Start difference. First operand 535 states and 735 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:03,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:03,902 INFO L93 Difference]: Finished difference Result 1060 states and 1448 transitions. [2024-11-28 04:18:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:18:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-28 04:18:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:03,908 INFO L225 Difference]: With dead ends: 1060 [2024-11-28 04:18:03,908 INFO L226 Difference]: Without dead ends: 633 [2024-11-28 04:18:03,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:18:03,911 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 124 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:03,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 433 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:18:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-28 04:18:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 543. [2024-11-28 04:18:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 478 states have (on average 1.3263598326359833) internal successors, (634), 480 states have internal predecessors, (634), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:18:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 744 transitions. [2024-11-28 04:18:03,988 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 744 transitions. Word has length 145 [2024-11-28 04:18:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:03,988 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 744 transitions. [2024-11-28 04:18:03,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 744 transitions. [2024-11-28 04:18:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:18:03,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:03,993 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:03,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:04,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:04,198 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1192358330, now seen corresponding path program 1 times [2024-11-28 04:18:04,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577362320] [2024-11-28 04:18:04,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:04,200 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 [2024-11-28 04:18:04,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:04,203 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:04,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:04,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:18:04,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:04,647 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 1 [2024-11-28 04:18:04,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:04,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 31 [2024-11-28 04:18:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:04,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:04,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:04,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577362320] [2024-11-28 04:18:04,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577362320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:04,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:04,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:04,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360138719] [2024-11-28 04:18:04,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:04,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:04,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:04,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:04,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:04,809 INFO L87 Difference]: Start difference. First operand 543 states and 744 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:05,309 INFO L93 Difference]: Finished difference Result 1318 states and 1792 transitions. [2024-11-28 04:18:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-11-28 04:18:05,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:05,317 INFO L225 Difference]: With dead ends: 1318 [2024-11-28 04:18:05,318 INFO L226 Difference]: Without dead ends: 883 [2024-11-28 04:18:05,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:05,320 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 100 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:05,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 909 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:18:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-28 04:18:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 871. [2024-11-28 04:18:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 773 states have (on average 1.3091849935316946) internal successors, (1012), 779 states have internal predecessors, (1012), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1178 transitions. [2024-11-28 04:18:05,397 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1178 transitions. Word has length 146 [2024-11-28 04:18:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:05,397 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1178 transitions. [2024-11-28 04:18:05,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1178 transitions. [2024-11-28 04:18:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:18:05,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:05,401 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:05,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:18:05,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:05,606 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:05,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash -108489272, now seen corresponding path program 1 times [2024-11-28 04:18:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066663801] [2024-11-28 04:18:05,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:05,607 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 [2024-11-28 04:18:05,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:05,610 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:05,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:05,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:18:05,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:06,397 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 33 treesize of output 15 [2024-11-28 04:18:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:18:06,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:06,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:06,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066663801] [2024-11-28 04:18:06,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066663801] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:06,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:06,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-28 04:18:06,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992785190] [2024-11-28 04:18:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:06,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:06,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:06,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:06,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:18:06,642 INFO L87 Difference]: Start difference. First operand 871 states and 1178 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:06,838 INFO L93 Difference]: Finished difference Result 1671 states and 2251 transitions. [2024-11-28 04:18:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:18:06,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-11-28 04:18:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:06,845 INFO L225 Difference]: With dead ends: 1671 [2024-11-28 04:18:06,845 INFO L226 Difference]: Without dead ends: 898 [2024-11-28 04:18:06,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:18:06,848 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 176 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:06,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 540 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:18:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-28 04:18:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 797. [2024-11-28 04:18:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 699 states have (on average 1.3004291845493563) internal successors, (909), 705 states have internal predecessors, (909), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:06,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1075 transitions. [2024-11-28 04:18:06,947 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1075 transitions. Word has length 146 [2024-11-28 04:18:06,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:06,947 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1075 transitions. [2024-11-28 04:18:06,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:06,948 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1075 transitions. [2024-11-28 04:18:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:18:06,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:06,950 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:06,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:18:07,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:07,151 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:07,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:07,152 INFO L85 PathProgramCache]: Analyzing trace with hash 296501322, now seen corresponding path program 1 times [2024-11-28 04:18:07,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:07,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536110346] [2024-11-28 04:18:07,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:07,152 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 [2024-11-28 04:18:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:07,155 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:07,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:07,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:18:07,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:07,548 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 8 treesize of output 1 [2024-11-28 04:18:07,555 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 21 treesize of output 21 [2024-11-28 04:18:07,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:07,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 37 treesize of output 24 [2024-11-28 04:18:07,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:07,670 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 66 treesize of output 30 [2024-11-28 04:18:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:07,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:07,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:07,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536110346] [2024-11-28 04:18:07,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536110346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:07,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:07,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:07,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407043964] [2024-11-28 04:18:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:07,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:07,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:07,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:07,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:07,710 INFO L87 Difference]: Start difference. First operand 797 states and 1075 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:08,143 INFO L93 Difference]: Finished difference Result 1492 states and 2014 transitions. [2024-11-28 04:18:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-11-28 04:18:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:08,149 INFO L225 Difference]: With dead ends: 1492 [2024-11-28 04:18:08,149 INFO L226 Difference]: Without dead ends: 793 [2024-11-28 04:18:08,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:08,152 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 98 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:08,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 677 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:18:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-28 04:18:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 789. [2024-11-28 04:18:08,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 689 states have (on average 1.2931785195936139) internal successors, (891), 695 states have internal predecessors, (891), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1057 transitions. [2024-11-28 04:18:08,221 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1057 transitions. Word has length 146 [2024-11-28 04:18:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:08,222 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1057 transitions. [2024-11-28 04:18:08,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1057 transitions. [2024-11-28 04:18:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:18:08,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:08,224 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:08,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:08,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:08,425 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:08,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash 916366955, now seen corresponding path program 1 times [2024-11-28 04:18:08,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:08,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737697938] [2024-11-28 04:18:08,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:08,426 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 [2024-11-28 04:18:08,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:08,428 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:08,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:08,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:18:08,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:08,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:08,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:08,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737697938] [2024-11-28 04:18:08,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737697938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:08,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:08,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:18:08,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211508617] [2024-11-28 04:18:08,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:08,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:18:08,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:08,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:18:08,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:18:08,771 INFO L87 Difference]: Start difference. First operand 789 states and 1057 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:08,843 INFO L93 Difference]: Finished difference Result 1488 states and 2000 transitions. [2024-11-28 04:18:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:18:08,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-11-28 04:18:08,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:08,848 INFO L225 Difference]: With dead ends: 1488 [2024-11-28 04:18:08,849 INFO L226 Difference]: Without dead ends: 797 [2024-11-28 04:18:08,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:18:08,851 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:08,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:18:08,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-28 04:18:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-11-28 04:18:08,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.2898134863701578) internal successors, (899), 703 states have internal predecessors, (899), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1065 transitions. [2024-11-28 04:18:08,916 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1065 transitions. Word has length 148 [2024-11-28 04:18:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:08,917 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1065 transitions. [2024-11-28 04:18:08,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1065 transitions. [2024-11-28 04:18:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:18:08,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:08,919 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:08,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:09,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:09,120 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:09,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1456165674, now seen corresponding path program 1 times [2024-11-28 04:18:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:09,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998373495] [2024-11-28 04:18:09,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:09,121 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 [2024-11-28 04:18:09,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:09,127 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:09,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:09,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:18:09,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:09,534 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 [2024-11-28 04:18:09,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 [2024-11-28 04:18:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:09,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:09,636 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998373495] [2024-11-28 04:18:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998373495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:09,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:09,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53925155] [2024-11-28 04:18:09,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:09,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:09,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:09,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:09,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:09,638 INFO L87 Difference]: Start difference. First operand 797 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:09,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:09,791 INFO L93 Difference]: Finished difference Result 1496 states and 2000 transitions. [2024-11-28 04:18:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:18:09,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-11-28 04:18:09,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:09,797 INFO L225 Difference]: With dead ends: 1496 [2024-11-28 04:18:09,797 INFO L226 Difference]: Without dead ends: 797 [2024-11-28 04:18:09,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:09,799 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 133 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:09,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 780 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:18:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-28 04:18:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-11-28 04:18:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.278335724533716) internal successors, (891), 703 states have internal predecessors, (891), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1057 transitions. [2024-11-28 04:18:09,908 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1057 transitions. Word has length 148 [2024-11-28 04:18:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:09,909 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1057 transitions. [2024-11-28 04:18:09,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1057 transitions. [2024-11-28 04:18:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:18:09,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:09,912 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:09,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:10,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:10,113 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:10,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1061947218, now seen corresponding path program 1 times [2024-11-28 04:18:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:10,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371355109] [2024-11-28 04:18:10,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:10,115 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 [2024-11-28 04:18:10,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:10,117 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:10,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:10,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:18:10,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:10,756 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 26 treesize of output 14 [2024-11-28 04:18:10,799 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 30 treesize of output 14 [2024-11-28 04:18:10,890 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 [2024-11-28 04:18:11,027 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 27 treesize of output 11 [2024-11-28 04:18:11,135 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 27 treesize of output 11 [2024-11-28 04:18:11,274 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 30 treesize of output 14 [2024-11-28 04:18:11,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:11,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 41 [2024-11-28 04:18:11,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 9 [2024-11-28 04:18:11,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:11,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 13 [2024-11-28 04:18:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:18:11,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 04:18:12,331 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:12,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371355109] [2024-11-28 04:18:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371355109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:18:12,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:18:12,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2024-11-28 04:18:12,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869159884] [2024-11-28 04:18:12,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:18:12,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:18:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:12,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:18:12,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:18:12,334 INFO L87 Difference]: Start difference. First operand 797 states and 1057 transitions. Second operand has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 04:18:15,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:15,124 INFO L93 Difference]: Finished difference Result 1537 states and 2027 transitions. [2024-11-28 04:18:15,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:18:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 148 [2024-11-28 04:18:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:15,130 INFO L225 Difference]: With dead ends: 1537 [2024-11-28 04:18:15,130 INFO L226 Difference]: Without dead ends: 838 [2024-11-28 04:18:15,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:18:15,132 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 681 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:15,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 776 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:18:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-28 04:18:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 797. [2024-11-28 04:18:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.272596843615495) internal successors, (887), 703 states have internal predecessors, (887), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:18:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1053 transitions. [2024-11-28 04:18:15,203 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1053 transitions. Word has length 148 [2024-11-28 04:18:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:15,204 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1053 transitions. [2024-11-28 04:18:15,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-28 04:18:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1053 transitions. [2024-11-28 04:18:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:15,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:15,205 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:15,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:18:15,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:15,406 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:15,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:15,407 INFO L85 PathProgramCache]: Analyzing trace with hash 251949574, now seen corresponding path program 1 times [2024-11-28 04:18:15,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:15,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537059047] [2024-11-28 04:18:15,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:15,408 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 [2024-11-28 04:18:15,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:15,410 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:15,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:15,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:18:15,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:16,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:16,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:16,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537059047] [2024-11-28 04:18:16,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537059047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:16,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:16,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:18:16,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168556502] [2024-11-28 04:18:16,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:16,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:18:16,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:16,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:18:16,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:16,003 INFO L87 Difference]: Start difference. First operand 797 states and 1053 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:17,285 INFO L93 Difference]: Finished difference Result 2219 states and 2923 transitions. [2024-11-28 04:18:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:18:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:17,294 INFO L225 Difference]: With dead ends: 2219 [2024-11-28 04:18:17,294 INFO L226 Difference]: Without dead ends: 1503 [2024-11-28 04:18:17,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:18:17,297 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 294 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:17,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 811 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:18:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-28 04:18:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1479. [2024-11-28 04:18:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1292 states have (on average 1.2546439628482973) internal successors, (1621), 1305 states have internal predecessors, (1621), 155 states have call successors, (155), 31 states have call predecessors, (155), 31 states have return successors, (155), 142 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-28 04:18:17,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1931 transitions. [2024-11-28 04:18:17,447 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1931 transitions. Word has length 150 [2024-11-28 04:18:17,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:17,447 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 1931 transitions. [2024-11-28 04:18:17,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1931 transitions. [2024-11-28 04:18:17,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:17,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:17,451 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:17,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:17,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:17,651 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:17,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash -703104489, now seen corresponding path program 1 times [2024-11-28 04:18:17,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:17,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601036101] [2024-11-28 04:18:17,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:17,652 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 [2024-11-28 04:18:17,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:17,654 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:17,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:18,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:18:18,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:18,093 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 14 treesize of output 10 [2024-11-28 04:18:18,427 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 30 treesize of output 23 [2024-11-28 04:18:18,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:18,646 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 67 treesize of output 31 [2024-11-28 04:18:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 04:18:18,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:18,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601036101] [2024-11-28 04:18:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601036101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:18,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:18,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:18:18,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791438549] [2024-11-28 04:18:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:18,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:18:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:18,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:18:18,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:18,684 INFO L87 Difference]: Start difference. First operand 1479 states and 1931 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:18:19,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:19,050 INFO L93 Difference]: Finished difference Result 1561 states and 2020 transitions. [2024-11-28 04:18:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:18:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-11-28 04:18:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:19,055 INFO L225 Difference]: With dead ends: 1561 [2024-11-28 04:18:19,055 INFO L226 Difference]: Without dead ends: 1559 [2024-11-28 04:18:19,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:18:19,056 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 177 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:19,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 784 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:18:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-11-28 04:18:19,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1559. [2024-11-28 04:18:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1364 states have (on average 1.2412023460410557) internal successors, (1693), 1377 states have internal predecessors, (1693), 155 states have call successors, (155), 39 states have call predecessors, (155), 39 states have return successors, (155), 142 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-28 04:18:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2003 transitions. [2024-11-28 04:18:19,222 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2003 transitions. Word has length 150 [2024-11-28 04:18:19,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:19,223 INFO L471 AbstractCegarLoop]: Abstraction has 1559 states and 2003 transitions. [2024-11-28 04:18:19,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:18:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2003 transitions. [2024-11-28 04:18:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:19,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:19,225 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:19,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:19,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:19,426 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:19,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:19,427 INFO L85 PathProgramCache]: Analyzing trace with hash -701257447, now seen corresponding path program 1 times [2024-11-28 04:18:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:19,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562728453] [2024-11-28 04:18:19,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:19,428 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 [2024-11-28 04:18:19,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:19,430 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:19,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:19,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:18:19,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:19,969 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 1 [2024-11-28 04:18:20,918 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 121 treesize of output 61 [2024-11-28 04:18:21,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:21,339 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 203 treesize of output 77 [2024-11-28 04:18:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 04:18:21,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:21,752 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:21,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562728453] [2024-11-28 04:18:21,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562728453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:21,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1432100726] [2024-11-28 04:18:21,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:21,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:18:21,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:18:21,755 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:18:21,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 04:18:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:22,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:18:22,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:22,964 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 [2024-11-28 04:18:24,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 59 [2024-11-28 04:18:25,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:25,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 77 [2024-11-28 04:18:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 04:18:25,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:25,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1432100726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:25,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:18:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-28 04:18:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111073321] [2024-11-28 04:18:25,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:18:25,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:18:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:25,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:18:25,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:18:25,328 INFO L87 Difference]: Start difference. First operand 1559 states and 2003 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-28 04:18:27,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:27,231 INFO L93 Difference]: Finished difference Result 4550 states and 5818 transitions. [2024-11-28 04:18:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:18:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 150 [2024-11-28 04:18:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:27,244 INFO L225 Difference]: With dead ends: 4550 [2024-11-28 04:18:27,245 INFO L226 Difference]: Without dead ends: 3106 [2024-11-28 04:18:27,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 365 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:18:27,249 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 518 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:27,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1623 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:18:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-11-28 04:18:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3096. [2024-11-28 04:18:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 2704 states have (on average 1.2307692307692308) internal successors, (3328), 2738 states have internal predecessors, (3328), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 04:18:27,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 3940 transitions. [2024-11-28 04:18:27,672 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 3940 transitions. Word has length 150 [2024-11-28 04:18:27,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:27,673 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 3940 transitions. [2024-11-28 04:18:27,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-28 04:18:27,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 3940 transitions. [2024-11-28 04:18:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:27,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:27,678 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:27,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:18:27,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-28 04:18:28,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:18:28,079 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:28,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1753808285, now seen corresponding path program 1 times [2024-11-28 04:18:28,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:28,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774144423] [2024-11-28 04:18:28,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:28,081 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 [2024-11-28 04:18:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:28,083 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:28,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:28,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:18:28,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:28,460 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 [2024-11-28 04:18:28,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 [2024-11-28 04:18:28,574 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 25 treesize of output 13 [2024-11-28 04:18:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:28,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:28,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:28,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774144423] [2024-11-28 04:18:28,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774144423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:28,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:28,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:18:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345727591] [2024-11-28 04:18:28,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:28,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:18:28,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:28,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:18:28,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:28,651 INFO L87 Difference]: Start difference. First operand 3096 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:30,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:30,159 INFO L93 Difference]: Finished difference Result 6124 states and 7786 transitions. [2024-11-28 04:18:30,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:18:30,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:30,174 INFO L225 Difference]: With dead ends: 6124 [2024-11-28 04:18:30,175 INFO L226 Difference]: Without dead ends: 3238 [2024-11-28 04:18:30,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:18:30,181 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 133 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:30,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1452 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:18:30,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2024-11-28 04:18:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3216. [2024-11-28 04:18:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2824 states have (on average 1.2209631728045325) internal successors, (3448), 2858 states have internal predecessors, (3448), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 04:18:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4060 transitions. [2024-11-28 04:18:30,600 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4060 transitions. Word has length 150 [2024-11-28 04:18:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:30,601 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 4060 transitions. [2024-11-28 04:18:30,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4060 transitions. [2024-11-28 04:18:30,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:30,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:30,604 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:30,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:30,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:30,805 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:30,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1167002271, now seen corresponding path program 1 times [2024-11-28 04:18:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:30,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483290782] [2024-11-28 04:18:30,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:30,806 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 [2024-11-28 04:18:30,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:30,808 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:30,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:31,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:18:31,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:31,283 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 22 treesize of output 10 [2024-11-28 04:18:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:31,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:31,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483290782] [2024-11-28 04:18:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483290782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:31,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:31,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:31,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268134031] [2024-11-28 04:18:31,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:31,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:31,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:31,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:31,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:31,306 INFO L87 Difference]: Start difference. First operand 3216 states and 4060 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:32,067 INFO L93 Difference]: Finished difference Result 6133 states and 7738 transitions. [2024-11-28 04:18:32,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:32,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:32,083 INFO L225 Difference]: With dead ends: 6133 [2024-11-28 04:18:32,083 INFO L226 Difference]: Without dead ends: 3127 [2024-11-28 04:18:32,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:32,087 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 127 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:32,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 471 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:18:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2024-11-28 04:18:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 3109. [2024-11-28 04:18:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 2717 states have (on average 1.2116304747883695) internal successors, (3292), 2751 states have internal predecessors, (3292), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 04:18:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 3904 transitions. [2024-11-28 04:18:32,616 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 3904 transitions. Word has length 150 [2024-11-28 04:18:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:32,618 INFO L471 AbstractCegarLoop]: Abstraction has 3109 states and 3904 transitions. [2024-11-28 04:18:32,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 3904 transitions. [2024-11-28 04:18:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:32,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:32,622 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:32,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:32,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:32,823 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 137336518, now seen corresponding path program 1 times [2024-11-28 04:18:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:32,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541523903] [2024-11-28 04:18:32,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:32,825 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 [2024-11-28 04:18:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:32,827 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:32,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:33,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:18:33,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:33,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:33,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:33,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541523903] [2024-11-28 04:18:33,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541523903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:18:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347238790] [2024-11-28 04:18:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:18:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:33,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:18:33,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:33,478 INFO L87 Difference]: Start difference. First operand 3109 states and 3904 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:34,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:34,811 INFO L93 Difference]: Finished difference Result 6036 states and 7583 transitions. [2024-11-28 04:18:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:18:34,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:34,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:34,826 INFO L225 Difference]: With dead ends: 6036 [2024-11-28 04:18:34,826 INFO L226 Difference]: Without dead ends: 3137 [2024-11-28 04:18:34,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:34,830 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 244 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:34,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 791 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:18:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2024-11-28 04:18:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3093. [2024-11-28 04:18:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 2701 states have (on average 1.2069603850425767) internal successors, (3260), 2735 states have internal predecessors, (3260), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 04:18:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 3872 transitions. [2024-11-28 04:18:35,153 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 3872 transitions. Word has length 150 [2024-11-28 04:18:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:35,153 INFO L471 AbstractCegarLoop]: Abstraction has 3093 states and 3872 transitions. [2024-11-28 04:18:35,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 3872 transitions. [2024-11-28 04:18:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:35,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:35,157 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:35,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:35,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:35,358 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:35,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1944398367, now seen corresponding path program 1 times [2024-11-28 04:18:35,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:35,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330897987] [2024-11-28 04:18:35,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:35,360 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 [2024-11-28 04:18:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:35,363 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:35,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:35,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:18:35,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:35,800 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 [2024-11-28 04:18:35,854 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 28 treesize of output 12 [2024-11-28 04:18:35,945 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 [2024-11-28 04:18:36,069 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 27 treesize of output 11 [2024-11-28 04:18:36,151 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 27 treesize of output 11 [2024-11-28 04:18:36,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:36,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 [2024-11-28 04:18:36,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:36,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 56 [2024-11-28 04:18:36,616 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 15 treesize of output 7 [2024-11-28 04:18:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 377 proven. 12 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-28 04:18:37,701 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:38,866 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:38,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330897987] [2024-11-28 04:18:38,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330897987] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:38,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:38,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 29 [2024-11-28 04:18:38,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886219771] [2024-11-28 04:18:38,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:38,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:18:38,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:38,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:18:38,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:18:38,868 INFO L87 Difference]: Start difference. First operand 3093 states and 3872 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:41,615 INFO L93 Difference]: Finished difference Result 7781 states and 9804 transitions. [2024-11-28 04:18:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:18:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:41,642 INFO L225 Difference]: With dead ends: 7781 [2024-11-28 04:18:41,642 INFO L226 Difference]: Without dead ends: 5869 [2024-11-28 04:18:41,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=305, Invalid=885, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:18:41,648 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 482 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:41,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1608 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:18:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5869 states. [2024-11-28 04:18:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5869 to 4743. [2024-11-28 04:18:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4254 states have (on average 1.2259050305594734) internal successors, (5215), 4313 states have internal predecessors, (5215), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:18:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 5967 transitions. [2024-11-28 04:18:42,131 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 5967 transitions. Word has length 150 [2024-11-28 04:18:42,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:42,132 INFO L471 AbstractCegarLoop]: Abstraction has 4743 states and 5967 transitions. [2024-11-28 04:18:42,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:42,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 5967 transitions. [2024-11-28 04:18:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:42,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:42,136 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:42,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:42,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:42,336 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:42,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:42,337 INFO L85 PathProgramCache]: Analyzing trace with hash 762221027, now seen corresponding path program 1 times [2024-11-28 04:18:42,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:42,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109840329] [2024-11-28 04:18:42,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:42,337 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 [2024-11-28 04:18:42,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:42,339 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:42,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:42,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:18:42,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:42,744 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 [2024-11-28 04:18:42,747 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 19 treesize of output 1 [2024-11-28 04:18:42,751 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 [2024-11-28 04:18:42,799 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 27 treesize of output 11 [2024-11-28 04:18:42,834 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 27 treesize of output 11 [2024-11-28 04:18:42,881 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 19 treesize of output 1 [2024-11-28 04:18:42,924 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 21 treesize of output 21 [2024-11-28 04:18:42,972 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 15 treesize of output 7 [2024-11-28 04:18:43,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:43,187 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 48 treesize of output 22 [2024-11-28 04:18:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:18:43,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:43,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109840329] [2024-11-28 04:18:43,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109840329] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:43,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:43,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 22 [2024-11-28 04:18:43,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681862980] [2024-11-28 04:18:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:43,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:18:43,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:43,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:18:43,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:18:43,885 INFO L87 Difference]: Start difference. First operand 4743 states and 5967 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:46,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:46,231 INFO L93 Difference]: Finished difference Result 8881 states and 11216 transitions. [2024-11-28 04:18:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:18:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:46,258 INFO L225 Difference]: With dead ends: 8881 [2024-11-28 04:18:46,258 INFO L226 Difference]: Without dead ends: 5407 [2024-11-28 04:18:46,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:18:46,267 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 251 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:46,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1584 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:18:46,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2024-11-28 04:18:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 4877. [2024-11-28 04:18:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4877 states, 4388 states have (on average 1.2331358249772106) internal successors, (5411), 4447 states have internal predecessors, (5411), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:18:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 6163 transitions. [2024-11-28 04:18:47,031 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 6163 transitions. Word has length 150 [2024-11-28 04:18:47,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:47,032 INFO L471 AbstractCegarLoop]: Abstraction has 4877 states and 6163 transitions. [2024-11-28 04:18:47,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 6163 transitions. [2024-11-28 04:18:47,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:47,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:47,037 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:47,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:18:47,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:47,238 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1872011809, now seen corresponding path program 1 times [2024-11-28 04:18:47,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:47,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863930406] [2024-11-28 04:18:47,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:47,239 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 [2024-11-28 04:18:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:47,241 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:47,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:47,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:18:47,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:47,676 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 8 treesize of output 1 [2024-11-28 04:18:47,681 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 21 treesize of output 21 [2024-11-28 04:18:47,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:47,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 37 [2024-11-28 04:18:48,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:48,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 22 [2024-11-28 04:18:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:48,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:48,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:48,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863930406] [2024-11-28 04:18:48,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863930406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:48,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:48,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:18:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133832623] [2024-11-28 04:18:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:48,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:18:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:48,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:18:48,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:18:48,184 INFO L87 Difference]: Start difference. First operand 4877 states and 6163 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:50,484 INFO L93 Difference]: Finished difference Result 9848 states and 12454 transitions. [2024-11-28 04:18:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:18:50,484 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:50,504 INFO L225 Difference]: With dead ends: 9848 [2024-11-28 04:18:50,504 INFO L226 Difference]: Without dead ends: 6258 [2024-11-28 04:18:50,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:18:50,511 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 209 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:50,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1937 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:18:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2024-11-28 04:18:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 5047. [2024-11-28 04:18:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 4558 states have (on average 1.2419921017990347) internal successors, (5661), 4617 states have internal predecessors, (5661), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:18:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 6413 transitions. [2024-11-28 04:18:51,002 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 6413 transitions. Word has length 150 [2024-11-28 04:18:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:51,003 INFO L471 AbstractCegarLoop]: Abstraction has 5047 states and 6413 transitions. [2024-11-28 04:18:51,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 6413 transitions. [2024-11-28 04:18:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:51,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:51,006 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:51,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:18:51,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:51,207 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:51,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash 834607585, now seen corresponding path program 1 times [2024-11-28 04:18:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342380822] [2024-11-28 04:18:51,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:51,208 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 [2024-11-28 04:18:51,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:51,210 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:51,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:51,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:18:51,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:51,554 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 [2024-11-28 04:18:51,610 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 23 treesize of output 22 [2024-11-28 04:18:51,812 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 [2024-11-28 04:18:52,031 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 27 treesize of output 11 [2024-11-28 04:18:52,157 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 27 treesize of output 11 [2024-11-28 04:18:52,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:52,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 38 treesize of output 25 [2024-11-28 04:18:52,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:52,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 45 [2024-11-28 04:18:52,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 7 [2024-11-28 04:18:53,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:53,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 30 [2024-11-28 04:18:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 419 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:18:53,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:54,111 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:54,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:54,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342380822] [2024-11-28 04:18:54,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342380822] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:18:54,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:18:54,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2024-11-28 04:18:54,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859702999] [2024-11-28 04:18:54,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:54,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:18:54,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:54,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:18:54,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:18:54,114 INFO L87 Difference]: Start difference. First operand 5047 states and 6413 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:56,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:56,144 INFO L93 Difference]: Finished difference Result 10486 states and 13301 transitions. [2024-11-28 04:18:56,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:56,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-11-28 04:18:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:56,166 INFO L225 Difference]: With dead ends: 10486 [2024-11-28 04:18:56,166 INFO L226 Difference]: Without dead ends: 6726 [2024-11-28 04:18:56,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:18:56,173 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 343 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:56,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 974 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:18:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6726 states. [2024-11-28 04:18:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6726 to 5102. [2024-11-28 04:18:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 4613 states have (on average 1.2497290266637764) internal successors, (5765), 4672 states have internal predecessors, (5765), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:18:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6517 transitions. [2024-11-28 04:18:56,684 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6517 transitions. Word has length 150 [2024-11-28 04:18:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:56,686 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 6517 transitions. [2024-11-28 04:18:56,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:18:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6517 transitions. [2024-11-28 04:18:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:18:56,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:56,689 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:56,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:56,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:56,889 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:56,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash -213210341, now seen corresponding path program 1 times [2024-11-28 04:18:56,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:56,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347855321] [2024-11-28 04:18:56,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:56,890 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 [2024-11-28 04:18:56,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:56,892 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:56,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:57,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:18:57,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 04:18:57,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:57,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:57,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347855321] [2024-11-28 04:18:57,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347855321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:57,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:57,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:18:57,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48441784] [2024-11-28 04:18:57,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:57,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:18:57,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:57,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:18:57,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:18:57,233 INFO L87 Difference]: Start difference. First operand 5102 states and 6517 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:18:57,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:57,724 INFO L93 Difference]: Finished difference Result 10023 states and 12798 transitions. [2024-11-28 04:18:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:18:57,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-11-28 04:18:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:57,742 INFO L225 Difference]: With dead ends: 10023 [2024-11-28 04:18:57,742 INFO L226 Difference]: Without dead ends: 5102 [2024-11-28 04:18:57,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:18:57,752 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:57,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 451 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:18:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2024-11-28 04:18:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5102. [2024-11-28 04:18:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 4613 states have (on average 1.2466941252980708) internal successors, (5751), 4672 states have internal predecessors, (5751), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:18:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6503 transitions. [2024-11-28 04:18:58,449 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6503 transitions. Word has length 150 [2024-11-28 04:18:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:58,449 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 6503 transitions. [2024-11-28 04:18:58,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:18:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6503 transitions. [2024-11-28 04:18:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:18:58,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:58,454 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:58,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:58,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:18:58,655 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:58,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1325830879, now seen corresponding path program 1 times [2024-11-28 04:18:58,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:18:58,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095275444] [2024-11-28 04:18:58,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:58,656 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 [2024-11-28 04:18:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:18:58,659 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:18:58,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:18:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:59,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:18:59,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:18:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:18:59,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:18:59,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:18:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095275444] [2024-11-28 04:18:59,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095275444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:59,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:59,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:18:59,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873874675] [2024-11-28 04:18:59,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:59,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:18:59,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:18:59,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:18:59,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:59,347 INFO L87 Difference]: Start difference. First operand 5102 states and 6503 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:00,536 INFO L93 Difference]: Finished difference Result 11622 states and 14835 transitions. [2024-11-28 04:19:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:19:00,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:00,558 INFO L225 Difference]: With dead ends: 11622 [2024-11-28 04:19:00,559 INFO L226 Difference]: Without dead ends: 6858 [2024-11-28 04:19:00,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:19:00,566 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 75 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:00,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 919 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:19:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2024-11-28 04:19:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 5958. [2024-11-28 04:19:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5450 states have (on average 1.261834862385321) internal successors, (6877), 5514 states have internal predecessors, (6877), 390 states have call successors, (390), 117 states have call predecessors, (390), 117 states have return successors, (390), 326 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-28 04:19:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 7657 transitions. [2024-11-28 04:19:01,145 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 7657 transitions. Word has length 152 [2024-11-28 04:19:01,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:01,145 INFO L471 AbstractCegarLoop]: Abstraction has 5958 states and 7657 transitions. [2024-11-28 04:19:01,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 7657 transitions. [2024-11-28 04:19:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:01,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:01,149 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:01,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:19:01,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:01,353 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:01,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:01,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1948068063, now seen corresponding path program 1 times [2024-11-28 04:19:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388037071] [2024-11-28 04:19:01,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:01,354 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 [2024-11-28 04:19:01,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:01,357 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:01,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:01,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:19:01,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:02,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:02,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 35 [2024-11-28 04:19:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:02,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:02,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:02,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388037071] [2024-11-28 04:19:02,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388037071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:02,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:02,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:19:02,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354621519] [2024-11-28 04:19:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:02,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:02,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:02,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:02,751 INFO L87 Difference]: Start difference. First operand 5958 states and 7657 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:05,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:05,391 INFO L93 Difference]: Finished difference Result 12086 states and 15464 transitions. [2024-11-28 04:19:05,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:19:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:05,416 INFO L225 Difference]: With dead ends: 12086 [2024-11-28 04:19:05,417 INFO L226 Difference]: Without dead ends: 6550 [2024-11-28 04:19:05,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:19:05,426 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 330 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:05,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1478 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:19:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2024-11-28 04:19:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 5950. [2024-11-28 04:19:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5950 states, 5442 states have (on average 1.2600147004777655) internal successors, (6857), 5506 states have internal predecessors, (6857), 390 states have call successors, (390), 117 states have call predecessors, (390), 117 states have return successors, (390), 326 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-28 04:19:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5950 states to 5950 states and 7637 transitions. [2024-11-28 04:19:06,021 INFO L78 Accepts]: Start accepts. Automaton has 5950 states and 7637 transitions. Word has length 152 [2024-11-28 04:19:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:06,021 INFO L471 AbstractCegarLoop]: Abstraction has 5950 states and 7637 transitions. [2024-11-28 04:19:06,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5950 states and 7637 transitions. [2024-11-28 04:19:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:06,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:06,024 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:06,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:19:06,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:06,225 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:06,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:06,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1631449195, now seen corresponding path program 1 times [2024-11-28 04:19:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:06,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225727143] [2024-11-28 04:19:06,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:06,227 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 [2024-11-28 04:19:06,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:06,229 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:06,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:06,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:19:06,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:06,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:06,835 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:06,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225727143] [2024-11-28 04:19:06,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225727143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:06,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:06,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:19:06,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542281187] [2024-11-28 04:19:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:06,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:19:06,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:06,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:19:06,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:19:06,837 INFO L87 Difference]: Start difference. First operand 5950 states and 7637 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:07,796 INFO L93 Difference]: Finished difference Result 13094 states and 16751 transitions. [2024-11-28 04:19:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:19:07,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:07,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:07,813 INFO L225 Difference]: With dead ends: 13094 [2024-11-28 04:19:07,813 INFO L226 Difference]: Without dead ends: 7566 [2024-11-28 04:19:07,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:19:07,822 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 76 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:07,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 776 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:19:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2024-11-28 04:19:08,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 6614. [2024-11-28 04:19:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 6087 states have (on average 1.2635124034828322) internal successors, (7691), 6156 states have internal predecessors, (7691), 404 states have call successors, (404), 122 states have call predecessors, (404), 122 states have return successors, (404), 335 states have call predecessors, (404), 404 states have call successors, (404) [2024-11-28 04:19:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 8499 transitions. [2024-11-28 04:19:08,409 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 8499 transitions. Word has length 152 [2024-11-28 04:19:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:08,410 INFO L471 AbstractCegarLoop]: Abstraction has 6614 states and 8499 transitions. [2024-11-28 04:19:08,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 8499 transitions. [2024-11-28 04:19:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:08,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:08,414 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:08,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:19:08,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:08,619 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:08,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash -362695511, now seen corresponding path program 1 times [2024-11-28 04:19:08,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:08,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27032615] [2024-11-28 04:19:08,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:08,620 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 [2024-11-28 04:19:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:08,623 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:08,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:19:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:09,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:19:09,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:09,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:09,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 41 [2024-11-28 04:19:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:09,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:09,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:09,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27032615] [2024-11-28 04:19:09,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27032615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:09,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:09,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:19:09,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99408225] [2024-11-28 04:19:09,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:09,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:19:09,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:09,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:19:09,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:19:09,707 INFO L87 Difference]: Start difference. First operand 6614 states and 8499 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:12,015 INFO L93 Difference]: Finished difference Result 14375 states and 18389 transitions. [2024-11-28 04:19:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:19:12,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:12,038 INFO L225 Difference]: With dead ends: 14375 [2024-11-28 04:19:12,039 INFO L226 Difference]: Without dead ends: 8211 [2024-11-28 04:19:12,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:19:12,049 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 349 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:12,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1310 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:19:12,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2024-11-28 04:19:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 6971. [2024-11-28 04:19:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6444 states have (on average 1.2652079453755432) internal successors, (8153), 6513 states have internal predecessors, (8153), 404 states have call successors, (404), 122 states have call predecessors, (404), 122 states have return successors, (404), 335 states have call predecessors, (404), 404 states have call successors, (404) [2024-11-28 04:19:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 8961 transitions. [2024-11-28 04:19:12,744 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 8961 transitions. Word has length 152 [2024-11-28 04:19:12,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:12,745 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 8961 transitions. [2024-11-28 04:19:12,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 8961 transitions. [2024-11-28 04:19:12,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:12,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:12,748 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:12,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:19:12,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:12,953 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:12,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash -624231005, now seen corresponding path program 1 times [2024-11-28 04:19:12,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:12,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656187231] [2024-11-28 04:19:12,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:12,954 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 [2024-11-28 04:19:12,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:12,956 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:12,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:13,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:19:13,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:13,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:13,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 44 [2024-11-28 04:19:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:13,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:13,774 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:13,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656187231] [2024-11-28 04:19:13,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656187231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:13,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:13,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:19:13,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873548070] [2024-11-28 04:19:13,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:13,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:19:13,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:13,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:19:13,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:19:13,776 INFO L87 Difference]: Start difference. First operand 6971 states and 8961 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:15,695 INFO L93 Difference]: Finished difference Result 13452 states and 17289 transitions. [2024-11-28 04:19:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:19:15,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:15,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:15,710 INFO L225 Difference]: With dead ends: 13452 [2024-11-28 04:19:15,710 INFO L226 Difference]: Without dead ends: 6859 [2024-11-28 04:19:15,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:19:15,718 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 343 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:15,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1593 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:19:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2024-11-28 04:19:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6789. [2024-11-28 04:19:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 6243 states have (on average 1.26045170591062) internal successors, (7869), 6313 states have internal predecessors, (7869), 418 states have call successors, (418), 127 states have call predecessors, (418), 127 states have return successors, (418), 348 states have call predecessors, (418), 418 states have call successors, (418) [2024-11-28 04:19:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 8705 transitions. [2024-11-28 04:19:16,269 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 8705 transitions. Word has length 152 [2024-11-28 04:19:16,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:16,270 INFO L471 AbstractCegarLoop]: Abstraction has 6789 states and 8705 transitions. [2024-11-28 04:19:16,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 8705 transitions. [2024-11-28 04:19:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:16,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:16,272 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:16,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:16,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:16,472 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:16,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1961918227, now seen corresponding path program 1 times [2024-11-28 04:19:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:16,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123412939] [2024-11-28 04:19:16,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:16,473 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 [2024-11-28 04:19:16,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:16,475 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:16,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:16,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:19:16,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:17,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:17,524 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:17,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123412939] [2024-11-28 04:19:17,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123412939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:17,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:17,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:19:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581810825] [2024-11-28 04:19:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:17,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:19:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:17,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:19:17,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:19:17,525 INFO L87 Difference]: Start difference. First operand 6789 states and 8705 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:19,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:19,582 INFO L93 Difference]: Finished difference Result 13728 states and 17505 transitions. [2024-11-28 04:19:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:19:19,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:19,601 INFO L225 Difference]: With dead ends: 13728 [2024-11-28 04:19:19,601 INFO L226 Difference]: Without dead ends: 7365 [2024-11-28 04:19:19,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:19:19,610 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 320 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:19,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1309 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:19:19,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2024-11-28 04:19:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5879. [2024-11-28 04:19:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5420 states have (on average 1.2736162361623615) internal successors, (6903), 5469 states have internal predecessors, (6903), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 7599 transitions. [2024-11-28 04:19:20,184 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 7599 transitions. Word has length 152 [2024-11-28 04:19:20,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:20,185 INFO L471 AbstractCegarLoop]: Abstraction has 5879 states and 7599 transitions. [2024-11-28 04:19:20,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 7599 transitions. [2024-11-28 04:19:20,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:20,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:20,188 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:20,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:19:20,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:20,388 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:20,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1903405306, now seen corresponding path program 1 times [2024-11-28 04:19:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:20,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143108428] [2024-11-28 04:19:20,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:20,389 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 [2024-11-28 04:19:20,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:20,394 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:20,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:20,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:19:20,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:20,884 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 [2024-11-28 04:19:20,937 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 28 treesize of output 12 [2024-11-28 04:19:21,041 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 [2024-11-28 04:19:21,203 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 27 treesize of output 11 [2024-11-28 04:19:21,308 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 27 treesize of output 11 [2024-11-28 04:19:21,439 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 28 treesize of output 12 [2024-11-28 04:19:21,498 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 30 treesize of output 25 [2024-11-28 04:19:21,548 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 15 treesize of output 7 [2024-11-28 04:19:21,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:21,657 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 55 treesize of output 25 [2024-11-28 04:19:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 377 proven. 12 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-28 04:19:21,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:19:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:21,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:21,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143108428] [2024-11-28 04:19:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143108428] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:19:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:19:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-28 04:19:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654840342] [2024-11-28 04:19:21,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:21,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:19:21,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:21,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:19:21,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:19:21,994 INFO L87 Difference]: Start difference. First operand 5879 states and 7599 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:23,351 INFO L93 Difference]: Finished difference Result 12174 states and 15672 transitions. [2024-11-28 04:19:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:19:23,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:23,364 INFO L225 Difference]: With dead ends: 12174 [2024-11-28 04:19:23,364 INFO L226 Difference]: Without dead ends: 7839 [2024-11-28 04:19:23,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:19:23,368 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 273 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:23,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 772 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:19:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7839 states. [2024-11-28 04:19:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7839 to 5759. [2024-11-28 04:19:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 5300 states have (on average 1.2681132075471697) internal successors, (6721), 5349 states have internal predecessors, (6721), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 7417 transitions. [2024-11-28 04:19:23,904 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 7417 transitions. Word has length 152 [2024-11-28 04:19:23,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:23,904 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 7417 transitions. [2024-11-28 04:19:23,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:23,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 7417 transitions. [2024-11-28 04:19:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:23,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:23,906 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:23,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:24,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:24,107 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:24,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash -517201912, now seen corresponding path program 1 times [2024-11-28 04:19:24,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:24,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090386986] [2024-11-28 04:19:24,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:24,108 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 [2024-11-28 04:19:24,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:24,113 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:24,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:24,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 04:19:24,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:24,595 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 [2024-11-28 04:19:24,642 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 23 treesize of output 22 [2024-11-28 04:19:24,860 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 [2024-11-28 04:19:25,084 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 27 treesize of output 11 [2024-11-28 04:19:25,222 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 27 treesize of output 11 [2024-11-28 04:19:25,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:25,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 36 [2024-11-28 04:19:25,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:25,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 61 [2024-11-28 04:19:25,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 7 [2024-11-28 04:19:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 419 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:19:26,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:19:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:26,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:26,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090386986] [2024-11-28 04:19:26,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090386986] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:19:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:19:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2024-11-28 04:19:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653019238] [2024-11-28 04:19:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:26,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:19:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:26,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:19:26,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:19:26,942 INFO L87 Difference]: Start difference. First operand 5759 states and 7417 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:29,436 INFO L93 Difference]: Finished difference Result 12734 states and 16383 transitions. [2024-11-28 04:19:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:19:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:29,450 INFO L225 Difference]: With dead ends: 12734 [2024-11-28 04:19:29,450 INFO L226 Difference]: Without dead ends: 8515 [2024-11-28 04:19:29,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:19:29,456 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 329 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:29,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1371 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:19:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2024-11-28 04:19:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 5791. [2024-11-28 04:19:29,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5791 states, 5332 states have (on average 1.2691297824456114) internal successors, (6767), 5381 states have internal predecessors, (6767), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5791 states to 5791 states and 7463 transitions. [2024-11-28 04:19:29,866 INFO L78 Accepts]: Start accepts. Automaton has 5791 states and 7463 transitions. Word has length 152 [2024-11-28 04:19:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:29,867 INFO L471 AbstractCegarLoop]: Abstraction has 5791 states and 7463 transitions. [2024-11-28 04:19:29,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5791 states and 7463 transitions. [2024-11-28 04:19:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:29,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:29,870 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:29,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:30,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:30,070 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 43899014, now seen corresponding path program 1 times [2024-11-28 04:19:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:30,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358160679] [2024-11-28 04:19:30,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:30,072 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 [2024-11-28 04:19:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:30,074 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:30,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:30,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 04:19:30,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:30,506 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 8 treesize of output 1 [2024-11-28 04:19:30,509 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 14 treesize of output 10 [2024-11-28 04:19:30,796 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 32 treesize of output 25 [2024-11-28 04:19:30,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:30,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 56 [2024-11-28 04:19:32,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:32,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 48 [2024-11-28 04:19:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:19:32,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:32,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358160679] [2024-11-28 04:19:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358160679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:19:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109232763] [2024-11-28 04:19:32,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:32,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:19:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:32,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:19:32,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:19:32,041 INFO L87 Difference]: Start difference. First operand 5791 states and 7463 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:35,385 INFO L93 Difference]: Finished difference Result 10818 states and 13962 transitions. [2024-11-28 04:19:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:19:35,386 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-28 04:19:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:35,397 INFO L225 Difference]: With dead ends: 10818 [2024-11-28 04:19:35,397 INFO L226 Difference]: Without dead ends: 6553 [2024-11-28 04:19:35,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:19:35,402 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 327 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:35,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1419 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:19:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2024-11-28 04:19:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 5645. [2024-11-28 04:19:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5186 states have (on average 1.2624373312765136) internal successors, (6547), 5235 states have internal predecessors, (6547), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 7243 transitions. [2024-11-28 04:19:35,916 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 7243 transitions. Word has length 152 [2024-11-28 04:19:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:35,916 INFO L471 AbstractCegarLoop]: Abstraction has 5645 states and 7243 transitions. [2024-11-28 04:19:35,917 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:35,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 7243 transitions. [2024-11-28 04:19:35,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:35,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:35,920 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:35,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:19:36,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:36,121 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:36,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1544448888, now seen corresponding path program 1 times [2024-11-28 04:19:36,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:36,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478479575] [2024-11-28 04:19:36,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:36,123 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 [2024-11-28 04:19:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:36,125 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:36,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:36,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:19:36,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:36,676 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 8 treesize of output 1 [2024-11-28 04:19:36,681 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 1 [2024-11-28 04:19:36,687 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 1 [2024-11-28 04:19:36,702 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 21 treesize of output 21 [2024-11-28 04:19:36,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:36,908 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 48 treesize of output 22 [2024-11-28 04:19:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:37,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:37,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:37,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478479575] [2024-11-28 04:19:37,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478479575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:37,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:37,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:19:37,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116814281] [2024-11-28 04:19:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:37,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:19:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:37,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:19:37,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:19:37,006 INFO L87 Difference]: Start difference. First operand 5645 states and 7243 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:38,850 INFO L93 Difference]: Finished difference Result 10790 states and 13850 transitions. [2024-11-28 04:19:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:19:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:38,862 INFO L225 Difference]: With dead ends: 10790 [2024-11-28 04:19:38,863 INFO L226 Difference]: Without dead ends: 6671 [2024-11-28 04:19:38,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:19:38,869 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 160 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:38,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1974 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:19:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2024-11-28 04:19:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5645. [2024-11-28 04:19:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5186 states have (on average 1.2624373312765136) internal successors, (6547), 5235 states have internal predecessors, (6547), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 7243 transitions. [2024-11-28 04:19:39,324 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 7243 transitions. Word has length 152 [2024-11-28 04:19:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:39,324 INFO L471 AbstractCegarLoop]: Abstraction has 5645 states and 7243 transitions. [2024-11-28 04:19:39,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 7243 transitions. [2024-11-28 04:19:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:39,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:39,328 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:39,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:39,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:39,532 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:39,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash 745498888, now seen corresponding path program 1 times [2024-11-28 04:19:39,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:39,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630902999] [2024-11-28 04:19:39,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:39,533 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 [2024-11-28 04:19:39,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:39,535 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:39,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:39,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:19:39,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:39,988 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 8 treesize of output 1 [2024-11-28 04:19:39,992 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 1 [2024-11-28 04:19:39,996 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 21 treesize of output 21 [2024-11-28 04:19:40,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:40,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 52 [2024-11-28 04:19:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:40,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:40,913 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:40,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630902999] [2024-11-28 04:19:40,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630902999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:40,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:40,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:19:40,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069123921] [2024-11-28 04:19:40,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:40,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:40,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:40,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:40,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:40,915 INFO L87 Difference]: Start difference. First operand 5645 states and 7243 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:43,234 INFO L93 Difference]: Finished difference Result 10526 states and 13496 transitions. [2024-11-28 04:19:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:19:43,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:43,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:43,245 INFO L225 Difference]: With dead ends: 10526 [2024-11-28 04:19:43,245 INFO L226 Difference]: Without dead ends: 6365 [2024-11-28 04:19:43,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:43,250 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 323 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:43,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1329 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:19:43,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6365 states. [2024-11-28 04:19:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6365 to 5499. [2024-11-28 04:19:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5040 states have (on average 1.2533730158730159) internal successors, (6317), 5089 states have internal predecessors, (6317), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7013 transitions. [2024-11-28 04:19:43,853 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7013 transitions. Word has length 152 [2024-11-28 04:19:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:43,853 INFO L471 AbstractCegarLoop]: Abstraction has 5499 states and 7013 transitions. [2024-11-28 04:19:43,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:43,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7013 transitions. [2024-11-28 04:19:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:43,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:43,857 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:43,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:44,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:44,058 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:44,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -842849014, now seen corresponding path program 1 times [2024-11-28 04:19:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:44,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127008744] [2024-11-28 04:19:44,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:44,059 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 [2024-11-28 04:19:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:44,061 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:44,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:44,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:19:44,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:44,556 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 8 treesize of output 1 [2024-11-28 04:19:44,560 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 14 treesize of output 10 [2024-11-28 04:19:44,844 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 30 treesize of output 14 [2024-11-28 04:19:44,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:44,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 34 [2024-11-28 04:19:45,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:45,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 27 [2024-11-28 04:19:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:19:45,347 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:45,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:45,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127008744] [2024-11-28 04:19:45,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127008744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:45,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:45,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:45,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568536668] [2024-11-28 04:19:45,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:45,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:19:45,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:45,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:19:45,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:19:45,348 INFO L87 Difference]: Start difference. First operand 5499 states and 7013 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:48,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:48,373 INFO L93 Difference]: Finished difference Result 10528 states and 13400 transitions. [2024-11-28 04:19:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:19:48,374 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-28 04:19:48,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:48,384 INFO L225 Difference]: With dead ends: 10528 [2024-11-28 04:19:48,385 INFO L226 Difference]: Without dead ends: 6525 [2024-11-28 04:19:48,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:19:48,390 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 296 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:48,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1858 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:19:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2024-11-28 04:19:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 5451. [2024-11-28 04:19:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 4992 states have (on average 1.2522035256410255) internal successors, (6251), 5041 states have internal predecessors, (6251), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6947 transitions. [2024-11-28 04:19:48,825 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6947 transitions. Word has length 152 [2024-11-28 04:19:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:48,825 INFO L471 AbstractCegarLoop]: Abstraction has 5451 states and 6947 transitions. [2024-11-28 04:19:48,825 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6947 transitions. [2024-11-28 04:19:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:48,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:48,827 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:48,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:19:49,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:49,028 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:49,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash -700443386, now seen corresponding path program 1 times [2024-11-28 04:19:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:49,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235354206] [2024-11-28 04:19:49,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:49,029 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 [2024-11-28 04:19:49,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:49,031 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:49,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:49,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:19:49,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:49,537 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 8 treesize of output 1 [2024-11-28 04:19:49,597 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 24 treesize of output 23 [2024-11-28 04:19:50,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:50,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-28 04:19:50,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:50,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 60 treesize of output 46 [2024-11-28 04:19:50,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:50,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 39 [2024-11-28 04:19:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 33 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 04:19:50,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:19:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:19:51,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235354206] [2024-11-28 04:19:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235354206] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:19:51,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:19:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-28 04:19:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787930041] [2024-11-28 04:19:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:51,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:19:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:51,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:19:51,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:19:51,422 INFO L87 Difference]: Start difference. First operand 5451 states and 6947 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:52,986 INFO L93 Difference]: Finished difference Result 10477 states and 13344 transitions. [2024-11-28 04:19:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:19:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-11-28 04:19:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:52,998 INFO L225 Difference]: With dead ends: 10477 [2024-11-28 04:19:52,998 INFO L226 Difference]: Without dead ends: 6518 [2024-11-28 04:19:53,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:19:53,003 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 388 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:53,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1219 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:19:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2024-11-28 04:19:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 5341. [2024-11-28 04:19:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 4882 states have (on average 1.2484637443670628) internal successors, (6095), 4931 states have internal predecessors, (6095), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 6791 transitions. [2024-11-28 04:19:53,442 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 6791 transitions. Word has length 152 [2024-11-28 04:19:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:53,442 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 6791 transitions. [2024-11-28 04:19:53,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:19:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 6791 transitions. [2024-11-28 04:19:53,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:53,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:53,444 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:53,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:53,645 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:53,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1156488, now seen corresponding path program 1 times [2024-11-28 04:19:53,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811226594] [2024-11-28 04:19:53,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:53,646 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 [2024-11-28 04:19:53,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:53,652 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:53,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-28 04:19:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:54,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:19:54,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:54,151 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 8 treesize of output 1 [2024-11-28 04:19:54,154 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 14 treesize of output 10 [2024-11-28 04:19:54,410 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 30 treesize of output 14 [2024-11-28 04:19:54,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:54,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 41 [2024-11-28 04:19:54,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:19:54,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 33 [2024-11-28 04:19:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:19:54,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:54,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:54,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811226594] [2024-11-28 04:19:54,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811226594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:54,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:54,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:19:54,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827478922] [2024-11-28 04:19:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:54,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:19:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:54,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:19:54,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:19:54,946 INFO L87 Difference]: Start difference. First operand 5341 states and 6791 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:57,786 INFO L93 Difference]: Finished difference Result 10799 states and 13692 transitions. [2024-11-28 04:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:19:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-28 04:19:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:57,807 INFO L225 Difference]: With dead ends: 10799 [2024-11-28 04:19:57,807 INFO L226 Difference]: Without dead ends: 6946 [2024-11-28 04:19:57,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:19:57,814 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 285 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:57,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1309 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:19:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2024-11-28 04:19:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 4995. [2024-11-28 04:19:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 4536 states have (on average 1.2339065255731922) internal successors, (5597), 4585 states have internal predecessors, (5597), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:19:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 6293 transitions. [2024-11-28 04:19:58,302 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 6293 transitions. Word has length 152 [2024-11-28 04:19:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:58,302 INFO L471 AbstractCegarLoop]: Abstraction has 4995 states and 6293 transitions. [2024-11-28 04:19:58,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:19:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 6293 transitions. [2024-11-28 04:19:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:19:58,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:58,305 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:58,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-11-28 04:19:58,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:19:58,506 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:58,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash -451019235, now seen corresponding path program 1 times [2024-11-28 04:19:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:19:58,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182001980] [2024-11-28 04:19:58,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:58,507 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 [2024-11-28 04:19:58,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:19:58,510 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:19:58,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:19:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:58,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:19:58,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:19:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 04:19:58,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:19:58,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:19:58,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182001980] [2024-11-28 04:19:58,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182001980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:58,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:58,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:19:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150608715] [2024-11-28 04:19:58,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:58,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:19:58,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:58,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:58,992 INFO L87 Difference]: Start difference. First operand 4995 states and 6293 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 04:19:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:59,626 INFO L93 Difference]: Finished difference Result 9970 states and 12534 transitions. [2024-11-28 04:19:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:19:59,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-11-28 04:19:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:59,637 INFO L225 Difference]: With dead ends: 9970 [2024-11-28 04:19:59,637 INFO L226 Difference]: Without dead ends: 5123 [2024-11-28 04:19:59,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:19:59,645 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:59,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 631 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:19:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2024-11-28 04:20:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 4995. [2024-11-28 04:20:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 4536 states have (on average 1.2312610229276897) internal successors, (5585), 4585 states have internal predecessors, (5585), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:20:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 6281 transitions. [2024-11-28 04:20:00,144 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 6281 transitions. Word has length 152 [2024-11-28 04:20:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:00,144 INFO L471 AbstractCegarLoop]: Abstraction has 4995 states and 6281 transitions. [2024-11-28 04:20:00,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 04:20:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 6281 transitions. [2024-11-28 04:20:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:20:00,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:00,146 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:00,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:00,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:00,347 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:00,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:00,347 INFO L85 PathProgramCache]: Analyzing trace with hash 641615967, now seen corresponding path program 1 times [2024-11-28 04:20:00,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:00,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106077131] [2024-11-28 04:20:00,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:00,347 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 [2024-11-28 04:20:00,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:00,349 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:00,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-28 04:20:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:00,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:20:00,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:00,918 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 1 [2024-11-28 04:20:02,026 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 119 treesize of output 59 [2024-11-28 04:20:02,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:02,428 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 201 treesize of output 75 [2024-11-28 04:20:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:20:02,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:02,846 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106077131] [2024-11-28 04:20:02,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106077131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1640359297] [2024-11-28 04:20:02,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:02,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:20:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:20:02,852 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:20:02,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-11-28 04:20:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:04,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:20:04,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:04,337 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 [2024-11-28 04:20:06,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 57 [2024-11-28 04:20:06,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:06,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 75 [2024-11-28 04:20:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:20:06,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:06,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1640359297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:06,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:20:06,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-11-28 04:20:06,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442028313] [2024-11-28 04:20:06,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:20:06,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:20:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:06,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:20:06,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:20:06,842 INFO L87 Difference]: Start difference. First operand 4995 states and 6281 transitions. Second operand has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-28 04:20:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:09,689 INFO L93 Difference]: Finished difference Result 9808 states and 12277 transitions. [2024-11-28 04:20:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:20:09,690 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 152 [2024-11-28 04:20:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:09,701 INFO L225 Difference]: With dead ends: 9808 [2024-11-28 04:20:09,701 INFO L226 Difference]: Without dead ends: 5123 [2024-11-28 04:20:09,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=323, Invalid=1237, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:20:09,707 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 523 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:09,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1747 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:20:09,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2024-11-28 04:20:10,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 2613. [2024-11-28 04:20:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2354 states have (on average 1.2221750212404419) internal successors, (2877), 2377 states have internal predecessors, (2877), 188 states have call successors, (188), 70 states have call predecessors, (188), 70 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:20:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3253 transitions. [2024-11-28 04:20:10,185 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3253 transitions. Word has length 152 [2024-11-28 04:20:10,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:10,186 INFO L471 AbstractCegarLoop]: Abstraction has 2613 states and 3253 transitions. [2024-11-28 04:20:10,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-28 04:20:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3253 transitions. [2024-11-28 04:20:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 04:20:10,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:10,188 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:10,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:10,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-28 04:20:10,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:10,589 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:10,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2038347279, now seen corresponding path program 1 times [2024-11-28 04:20:10,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:10,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24643711] [2024-11-28 04:20:10,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:10,590 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 [2024-11-28 04:20:10,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:10,596 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:10,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:11,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:20:11,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:11,043 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:11,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:11,043 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:11,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24643711] [2024-11-28 04:20:11,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24643711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:11,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:11,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:20:11,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929585231] [2024-11-28 04:20:11,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:11,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:20:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:11,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:20:11,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:20:11,045 INFO L87 Difference]: Start difference. First operand 2613 states and 3253 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:11,338 INFO L93 Difference]: Finished difference Result 4422 states and 5534 transitions. [2024-11-28 04:20:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:20:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-28 04:20:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:11,346 INFO L225 Difference]: With dead ends: 4422 [2024-11-28 04:20:11,346 INFO L226 Difference]: Without dead ends: 2567 [2024-11-28 04:20:11,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:20:11,349 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:11,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:20:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2024-11-28 04:20:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2564. [2024-11-28 04:20:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2305 states have (on average 1.2164859002169197) internal successors, (2804), 2328 states have internal predecessors, (2804), 188 states have call successors, (188), 70 states have call predecessors, (188), 70 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:20:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3180 transitions. [2024-11-28 04:20:11,614 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3180 transitions. Word has length 153 [2024-11-28 04:20:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:11,615 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 3180 transitions. [2024-11-28 04:20:11,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:11,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3180 transitions. [2024-11-28 04:20:11,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:20:11,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:11,616 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:11,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:11,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:11,817 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:11,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1498266246, now seen corresponding path program 1 times [2024-11-28 04:20:11,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:11,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438663444] [2024-11-28 04:20:11,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:11,818 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 [2024-11-28 04:20:11,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:11,820 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:11,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:12,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:20:12,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:12,308 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 8 treesize of output 1 [2024-11-28 04:20:12,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:12,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 31 [2024-11-28 04:20:12,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:12,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 18 [2024-11-28 04:20:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:12,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:12,652 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438663444] [2024-11-28 04:20:12,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438663444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:12,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:12,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:20:12,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239205588] [2024-11-28 04:20:12,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:12,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:20:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:12,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:20:12,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:20:12,653 INFO L87 Difference]: Start difference. First operand 2564 states and 3180 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:13,917 INFO L93 Difference]: Finished difference Result 5817 states and 7195 transitions. [2024-11-28 04:20:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:20:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-11-28 04:20:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:13,926 INFO L225 Difference]: With dead ends: 5817 [2024-11-28 04:20:13,926 INFO L226 Difference]: Without dead ends: 3420 [2024-11-28 04:20:13,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:20:13,929 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 92 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:13,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1833 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:20:13,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2024-11-28 04:20:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 3307. [2024-11-28 04:20:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2996 states have (on average 1.215954606141522) internal successors, (3643), 3026 states have internal predecessors, (3643), 224 states have call successors, (224), 86 states have call predecessors, (224), 86 states have return successors, (224), 194 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-28 04:20:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4091 transitions. [2024-11-28 04:20:14,268 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4091 transitions. Word has length 154 [2024-11-28 04:20:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:14,269 INFO L471 AbstractCegarLoop]: Abstraction has 3307 states and 4091 transitions. [2024-11-28 04:20:14,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4091 transitions. [2024-11-28 04:20:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:20:14,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:14,270 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:14,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:14,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:14,471 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:14,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:14,471 INFO L85 PathProgramCache]: Analyzing trace with hash 218402568, now seen corresponding path program 1 times [2024-11-28 04:20:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453255355] [2024-11-28 04:20:14,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:14,472 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 [2024-11-28 04:20:14,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:14,474 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:14,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-28 04:20:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:14,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:20:14,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:15,003 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 [2024-11-28 04:20:15,188 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 34 treesize of output 14 [2024-11-28 04:20:15,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:15,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 26 [2024-11-28 04:20:15,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:15,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 47 treesize of output 26 [2024-11-28 04:20:15,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:15,899 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 44 treesize of output 16 [2024-11-28 04:20:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 24 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 04:20:15,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:16,208 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:16,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453255355] [2024-11-28 04:20:16,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453255355] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:16,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:20:16,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-28 04:20:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153680748] [2024-11-28 04:20:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:16,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:20:16,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:16,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:20:16,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:20:16,210 INFO L87 Difference]: Start difference. First operand 3307 states and 4091 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:16,772 INFO L93 Difference]: Finished difference Result 6525 states and 8061 transitions. [2024-11-28 04:20:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:20:16,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-11-28 04:20:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:16,781 INFO L225 Difference]: With dead ends: 6525 [2024-11-28 04:20:16,781 INFO L226 Difference]: Without dead ends: 3400 [2024-11-28 04:20:16,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:20:16,785 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 152 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:16,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 610 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:20:16,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2024-11-28 04:20:17,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3288. [2024-11-28 04:20:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 2977 states have (on average 1.2139737991266375) internal successors, (3614), 3007 states have internal predecessors, (3614), 224 states have call successors, (224), 86 states have call predecessors, (224), 86 states have return successors, (224), 194 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-28 04:20:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4062 transitions. [2024-11-28 04:20:17,122 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4062 transitions. Word has length 154 [2024-11-28 04:20:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:17,122 INFO L471 AbstractCegarLoop]: Abstraction has 3288 states and 4062 transitions. [2024-11-28 04:20:17,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4062 transitions. [2024-11-28 04:20:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:20:17,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:17,124 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:17,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-11-28 04:20:17,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:17,324 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:17,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:17,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1520898500, now seen corresponding path program 1 times [2024-11-28 04:20:17,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:17,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350254907] [2024-11-28 04:20:17,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:17,325 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 [2024-11-28 04:20:17,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:17,327 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:17,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:17,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:20:17,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:17,773 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 [2024-11-28 04:20:17,918 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 34 treesize of output 14 [2024-11-28 04:20:18,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:18,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 26 [2024-11-28 04:20:18,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:18,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 50 treesize of output 27 [2024-11-28 04:20:18,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:18,675 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 47 treesize of output 17 [2024-11-28 04:20:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 24 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 04:20:18,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:19,055 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:19,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350254907] [2024-11-28 04:20:19,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350254907] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:19,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:20:19,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-28 04:20:19,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385789180] [2024-11-28 04:20:19,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:19,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:20:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:19,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:20:19,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:20:19,057 INFO L87 Difference]: Start difference. First operand 3288 states and 4062 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:19,624 INFO L93 Difference]: Finished difference Result 6415 states and 7918 transitions. [2024-11-28 04:20:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:20:19,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-11-28 04:20:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:19,635 INFO L225 Difference]: With dead ends: 6415 [2024-11-28 04:20:19,635 INFO L226 Difference]: Without dead ends: 3309 [2024-11-28 04:20:19,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:20:19,639 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 89 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:19,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 644 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:20:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-11-28 04:20:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2813. [2024-11-28 04:20:19,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2588 states have (on average 1.2291344667697064) internal successors, (3181), 2608 states have internal predecessors, (3181), 162 states have call successors, (162), 62 states have call predecessors, (162), 62 states have return successors, (162), 142 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-28 04:20:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3505 transitions. [2024-11-28 04:20:19,943 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3505 transitions. Word has length 154 [2024-11-28 04:20:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:19,943 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 3505 transitions. [2024-11-28 04:20:19,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3505 transitions. [2024-11-28 04:20:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:20:19,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:19,945 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:19,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:20,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:20,145 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:20,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 241034822, now seen corresponding path program 1 times [2024-11-28 04:20:20,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:20,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674882228] [2024-11-28 04:20:20,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:20,146 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 [2024-11-28 04:20:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:20,148 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:20,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:20,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:20:20,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:20,627 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 8 treesize of output 1 [2024-11-28 04:20:20,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:20,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 [2024-11-28 04:20:20,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:20,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 18 [2024-11-28 04:20:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:20,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:20,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:20,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674882228] [2024-11-28 04:20:20,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674882228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:20,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:20,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:20:20,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518820673] [2024-11-28 04:20:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:20,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:20:20,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:20,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:20:20,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:20:20,998 INFO L87 Difference]: Start difference. First operand 2813 states and 3505 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:22,366 INFO L93 Difference]: Finished difference Result 5919 states and 7335 transitions. [2024-11-28 04:20:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:20:22,367 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-11-28 04:20:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:22,374 INFO L225 Difference]: With dead ends: 5919 [2024-11-28 04:20:22,375 INFO L226 Difference]: Without dead ends: 3292 [2024-11-28 04:20:22,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:20:22,377 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 95 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:22,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1913 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:20:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-28 04:20:22,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3170. [2024-11-28 04:20:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2887 states have (on average 1.2157949428472463) internal successors, (3510), 2914 states have internal predecessors, (3510), 202 states have call successors, (202), 80 states have call predecessors, (202), 80 states have return successors, (202), 175 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-28 04:20:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3914 transitions. [2024-11-28 04:20:22,681 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3914 transitions. Word has length 154 [2024-11-28 04:20:22,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:22,681 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 3914 transitions. [2024-11-28 04:20:22,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:22,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3914 transitions. [2024-11-28 04:20:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:20:22,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:22,682 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:22,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:20:22,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:22,883 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:22,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1973424404, now seen corresponding path program 1 times [2024-11-28 04:20:22,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:22,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406972240] [2024-11-28 04:20:22,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:22,884 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 [2024-11-28 04:20:22,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:22,885 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:22,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:23,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:20:23,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:23,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 15 [2024-11-28 04:20:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:20:23,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:23,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:23,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406972240] [2024-11-28 04:20:23,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406972240] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:23,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:20:23,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-28 04:20:23,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091597251] [2024-11-28 04:20:23,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:23,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:20:23,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:23,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:20:23,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:20:23,846 INFO L87 Difference]: Start difference. First operand 3170 states and 3914 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:24,312 INFO L93 Difference]: Finished difference Result 5935 states and 7314 transitions. [2024-11-28 04:20:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:20:24,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-28 04:20:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:24,322 INFO L225 Difference]: With dead ends: 5935 [2024-11-28 04:20:24,322 INFO L226 Difference]: Without dead ends: 3445 [2024-11-28 04:20:24,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:24,326 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 138 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:24,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 537 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:20:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-11-28 04:20:24,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3170. [2024-11-28 04:20:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2887 states have (on average 1.2092137166608936) internal successors, (3491), 2914 states have internal predecessors, (3491), 202 states have call successors, (202), 80 states have call predecessors, (202), 80 states have return successors, (202), 175 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-28 04:20:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3895 transitions. [2024-11-28 04:20:24,699 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3895 transitions. Word has length 155 [2024-11-28 04:20:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:24,699 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 3895 transitions. [2024-11-28 04:20:24,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3895 transitions. [2024-11-28 04:20:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:24,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:24,701 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:24,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:24,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:24,902 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:24,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:24,902 INFO L85 PathProgramCache]: Analyzing trace with hash -862410779, now seen corresponding path program 1 times [2024-11-28 04:20:24,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:24,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696561178] [2024-11-28 04:20:24,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:24,903 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 [2024-11-28 04:20:24,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:24,905 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:24,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:25,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:20:25,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:26,323 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:26,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696561178] [2024-11-28 04:20:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696561178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:26,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:20:26,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845058537] [2024-11-28 04:20:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:26,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:20:26,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:26,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:20:26,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:20:26,325 INFO L87 Difference]: Start difference. First operand 3170 states and 3895 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:28,382 INFO L93 Difference]: Finished difference Result 6133 states and 7545 transitions. [2024-11-28 04:20:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:28,383 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:28,393 INFO L225 Difference]: With dead ends: 6133 [2024-11-28 04:20:28,393 INFO L226 Difference]: Without dead ends: 3643 [2024-11-28 04:20:28,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:20:28,396 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 117 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:28,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1260 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:20:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2024-11-28 04:20:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3541. [2024-11-28 04:20:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3218 states have (on average 1.2078931013051586) internal successors, (3887), 3250 states have internal predecessors, (3887), 231 states have call successors, (231), 91 states have call predecessors, (231), 91 states have return successors, (231), 199 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-28 04:20:28,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 4349 transitions. [2024-11-28 04:20:28,816 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 4349 transitions. Word has length 157 [2024-11-28 04:20:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:28,816 INFO L471 AbstractCegarLoop]: Abstraction has 3541 states and 4349 transitions. [2024-11-28 04:20:28,816 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 4349 transitions. [2024-11-28 04:20:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:28,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:28,818 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:28,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:29,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:29,018 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:29,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash 639447932, now seen corresponding path program 1 times [2024-11-28 04:20:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:29,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186579840] [2024-11-28 04:20:29,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:29,019 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 [2024-11-28 04:20:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:29,021 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:29,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:29,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:20:29,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:29,676 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 [2024-11-28 04:20:29,732 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 27 treesize of output 11 [2024-11-28 04:20:29,775 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 27 treesize of output 11 [2024-11-28 04:20:29,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 7 [2024-11-28 04:20:29,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 10 [2024-11-28 04:20:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:20:30,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:30,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 15 [2024-11-28 04:20:30,529 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186579840] [2024-11-28 04:20:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186579840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1968905158] [2024-11-28 04:20:30,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:30,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:20:30,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:20:30,532 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:20:30,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2024-11-28 04:20:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:31,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:20:31,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:31,889 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 [2024-11-28 04:20:32,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:20:32,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:20:32,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 7 [2024-11-28 04:20:32,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 10 [2024-11-28 04:20:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 04:20:32,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:32,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 15 [2024-11-28 04:20:32,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1968905158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:32,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:20:32,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-28 04:20:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754136618] [2024-11-28 04:20:32,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:20:32,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:20:32,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:32,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:20:32,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:20:32,720 INFO L87 Difference]: Start difference. First operand 3541 states and 4349 transitions. Second operand has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-28 04:20:37,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:37,900 INFO L93 Difference]: Finished difference Result 8989 states and 10989 transitions. [2024-11-28 04:20:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:20:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 157 [2024-11-28 04:20:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:37,912 INFO L225 Difference]: With dead ends: 8989 [2024-11-28 04:20:37,912 INFO L226 Difference]: Without dead ends: 6124 [2024-11-28 04:20:37,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 392 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:20:37,915 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 321 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:37,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1269 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:20:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6124 states. [2024-11-28 04:20:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6124 to 3756. [2024-11-28 04:20:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3523 states have (on average 1.2455293783707069) internal successors, (4388), 3542 states have internal predecessors, (4388), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-28 04:20:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 4720 transitions. [2024-11-28 04:20:38,267 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 4720 transitions. Word has length 157 [2024-11-28 04:20:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:38,267 INFO L471 AbstractCegarLoop]: Abstraction has 3756 states and 4720 transitions. [2024-11-28 04:20:38,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-28 04:20:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 4720 transitions. [2024-11-28 04:20:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:38,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:38,269 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:38,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:38,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2024-11-28 04:20:38,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:20:38,670 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:38,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash 52641918, now seen corresponding path program 1 times [2024-11-28 04:20:38,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:38,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256970361] [2024-11-28 04:20:38,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:38,671 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 [2024-11-28 04:20:38,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:38,673 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:38,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:39,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:20:39,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:39,160 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 [2024-11-28 04:20:39,290 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 34 treesize of output 14 [2024-11-28 04:20:39,352 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 34 treesize of output 14 [2024-11-28 04:20:39,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:39,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 56 [2024-11-28 04:20:40,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:40,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 28 [2024-11-28 04:20:40,328 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 23 treesize of output 11 [2024-11-28 04:20:40,387 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 265 proven. 24 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:20:40,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:20:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:40,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:40,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256970361] [2024-11-28 04:20:40,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256970361] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:20:40,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:20:40,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-28 04:20:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910425017] [2024-11-28 04:20:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:40,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:20:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:40,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:20:40,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:20:40,725 INFO L87 Difference]: Start difference. First operand 3756 states and 4720 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:41,640 INFO L93 Difference]: Finished difference Result 7757 states and 9767 transitions. [2024-11-28 04:20:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:20:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:41,650 INFO L225 Difference]: With dead ends: 7757 [2024-11-28 04:20:41,650 INFO L226 Difference]: Without dead ends: 4712 [2024-11-28 04:20:41,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:20:41,653 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 83 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:41,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 612 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:20:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2024-11-28 04:20:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4076. [2024-11-28 04:20:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 3843 states have (on average 1.253968253968254) internal successors, (4819), 3862 states have internal predecessors, (4819), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-28 04:20:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 5151 transitions. [2024-11-28 04:20:41,976 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 5151 transitions. Word has length 157 [2024-11-28 04:20:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:41,976 INFO L471 AbstractCegarLoop]: Abstraction has 4076 states and 5151 transitions. [2024-11-28 04:20:41,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 5151 transitions. [2024-11-28 04:20:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:41,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:41,978 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:41,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:42,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:42,178 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:42,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1916371043, now seen corresponding path program 1 times [2024-11-28 04:20:42,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:42,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563832652] [2024-11-28 04:20:42,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:42,179 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 [2024-11-28 04:20:42,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:42,180 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:42,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:42,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:20:42,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:42,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:42,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-11-28 04:20:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:42,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:42,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:42,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563832652] [2024-11-28 04:20:42,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563832652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:42,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:20:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313019882] [2024-11-28 04:20:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:42,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:20:42,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:42,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:20:42,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:20:42,851 INFO L87 Difference]: Start difference. First operand 4076 states and 5151 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:44,629 INFO L93 Difference]: Finished difference Result 8481 states and 10649 transitions. [2024-11-28 04:20:44,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:20:44,630 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:44,640 INFO L225 Difference]: With dead ends: 8481 [2024-11-28 04:20:44,640 INFO L226 Difference]: Without dead ends: 4278 [2024-11-28 04:20:44,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:44,644 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 141 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:44,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1222 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:20:44,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-11-28 04:20:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 3397. [2024-11-28 04:20:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3164 states have (on average 1.2310366624525917) internal successors, (3895), 3183 states have internal predecessors, (3895), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-28 04:20:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4227 transitions. [2024-11-28 04:20:45,045 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4227 transitions. Word has length 157 [2024-11-28 04:20:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:45,045 INFO L471 AbstractCegarLoop]: Abstraction has 3397 states and 4227 transitions. [2024-11-28 04:20:45,045 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4227 transitions. [2024-11-28 04:20:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:45,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:45,047 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:45,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:20:45,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:45,247 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:45,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:45,248 INFO L85 PathProgramCache]: Analyzing trace with hash 643410025, now seen corresponding path program 1 times [2024-11-28 04:20:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:45,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359758111] [2024-11-28 04:20:45,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:45,248 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 [2024-11-28 04:20:45,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:45,250 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:45,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:45,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:20:45,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:45,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:45,847 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 59 treesize of output 29 [2024-11-28 04:20:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:45,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:45,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:45,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359758111] [2024-11-28 04:20:45,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359758111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:45,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:45,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:20:45,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552592418] [2024-11-28 04:20:45,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:45,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:20:45,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:45,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:20:45,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:20:45,866 INFO L87 Difference]: Start difference. First operand 3397 states and 4227 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:46,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:46,839 INFO L93 Difference]: Finished difference Result 7843 states and 9692 transitions. [2024-11-28 04:20:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:20:46,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:46,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:46,851 INFO L225 Difference]: With dead ends: 7843 [2024-11-28 04:20:46,851 INFO L226 Difference]: Without dead ends: 4538 [2024-11-28 04:20:46,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:20:46,854 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 62 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:46,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 700 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:20:46,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-11-28 04:20:47,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 3509. [2024-11-28 04:20:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 3262 states have (on average 1.2250153280196199) internal successors, (3996), 3283 states have internal predecessors, (3996), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:20:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4348 transitions. [2024-11-28 04:20:47,268 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4348 transitions. Word has length 157 [2024-11-28 04:20:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:47,269 INFO L471 AbstractCegarLoop]: Abstraction has 3509 states and 4348 transitions. [2024-11-28 04:20:47,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4348 transitions. [2024-11-28 04:20:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:47,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:47,270 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:47,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:47,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:47,471 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:47,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1350734681, now seen corresponding path program 1 times [2024-11-28 04:20:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:47,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106247681] [2024-11-28 04:20:47,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:47,472 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 [2024-11-28 04:20:47,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:47,474 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:47,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:47,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:20:47,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:48,816 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:48,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106247681] [2024-11-28 04:20:48,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106247681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:48,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:48,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:20:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817737221] [2024-11-28 04:20:48,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:48,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:20:48,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:48,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:20:48,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:20:48,818 INFO L87 Difference]: Start difference. First operand 3509 states and 4348 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:50,982 INFO L93 Difference]: Finished difference Result 7153 states and 8839 transitions. [2024-11-28 04:20:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:20:50,983 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:50,993 INFO L225 Difference]: With dead ends: 7153 [2024-11-28 04:20:50,993 INFO L226 Difference]: Without dead ends: 4332 [2024-11-28 04:20:50,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:20:50,997 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 162 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:50,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1059 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:20:50,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2024-11-28 04:20:51,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3618. [2024-11-28 04:20:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3371 states have (on average 1.2242657964995551) internal successors, (4127), 3392 states have internal predecessors, (4127), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:20:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 4479 transitions. [2024-11-28 04:20:51,471 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 4479 transitions. Word has length 157 [2024-11-28 04:20:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:51,472 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 4479 transitions. [2024-11-28 04:20:51,472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 4479 transitions. [2024-11-28 04:20:51,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:20:51,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:51,474 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:51,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:20:51,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:51,675 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:51,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2054842793, now seen corresponding path program 1 times [2024-11-28 04:20:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:51,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956459211] [2024-11-28 04:20:51,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:51,676 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 [2024-11-28 04:20:51,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:51,681 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:51,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:20:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:52,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:20:52,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:52,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:20:52,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 31 [2024-11-28 04:20:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:52,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:52,532 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956459211] [2024-11-28 04:20:52,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956459211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:52,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:52,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:20:52,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236163720] [2024-11-28 04:20:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:52,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:20:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:52,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:20:52,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:20:52,533 INFO L87 Difference]: Start difference. First operand 3618 states and 4479 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:54,059 INFO L93 Difference]: Finished difference Result 7436 states and 9160 transitions. [2024-11-28 04:20:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:20:54,060 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-28 04:20:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:54,071 INFO L225 Difference]: With dead ends: 7436 [2024-11-28 04:20:54,071 INFO L226 Difference]: Without dead ends: 3935 [2024-11-28 04:20:54,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:20:54,075 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 73 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:54,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 986 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:20:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2024-11-28 04:20:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3454. [2024-11-28 04:20:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3207 states have (on average 1.219519800436545) internal successors, (3911), 3228 states have internal predecessors, (3911), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:20:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4263 transitions. [2024-11-28 04:20:54,608 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4263 transitions. Word has length 157 [2024-11-28 04:20:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:54,608 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 4263 transitions. [2024-11-28 04:20:54,608 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4263 transitions. [2024-11-28 04:20:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:20:54,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:54,609 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:54,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:54,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:20:54,810 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:20:54,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1129450530, now seen corresponding path program 1 times [2024-11-28 04:20:54,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:54,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522218978] [2024-11-28 04:20:54,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:54,811 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 [2024-11-28 04:20:54,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:20:54,813 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:20:54,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:20:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:55,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:20:55,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:20:56,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:56,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522218978] [2024-11-28 04:20:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522218978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:56,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:56,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:20:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550001036] [2024-11-28 04:20:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:56,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:20:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:56,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:20:56,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:20:56,690 INFO L87 Difference]: Start difference. First operand 3454 states and 4263 transitions. Second operand has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:20:59,490 INFO L93 Difference]: Finished difference Result 8057 states and 9852 transitions. [2024-11-28 04:20:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:20:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-11-28 04:20:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:20:59,502 INFO L225 Difference]: With dead ends: 8057 [2024-11-28 04:20:59,502 INFO L226 Difference]: Without dead ends: 4770 [2024-11-28 04:20:59,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:20:59,506 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 145 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:20:59,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1802 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:20:59,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2024-11-28 04:20:59,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 3413. [2024-11-28 04:20:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3166 states have (on average 1.2160454832596337) internal successors, (3850), 3187 states have internal predecessors, (3850), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:20:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4202 transitions. [2024-11-28 04:20:59,933 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4202 transitions. Word has length 159 [2024-11-28 04:20:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:20:59,934 INFO L471 AbstractCegarLoop]: Abstraction has 3413 states and 4202 transitions. [2024-11-28 04:20:59,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:20:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4202 transitions. [2024-11-28 04:20:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:20:59,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:20:59,935 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:59,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:21:00,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:00,136 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:00,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:00,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1171372060, now seen corresponding path program 1 times [2024-11-28 04:21:00,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:00,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476895786] [2024-11-28 04:21:00,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:00,137 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 [2024-11-28 04:21:00,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:00,139 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:00,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:00,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:21:00,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:21:00,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:00,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476895786] [2024-11-28 04:21:00,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476895786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:00,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:00,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:21:00,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517330416] [2024-11-28 04:21:00,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:00,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:21:00,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:00,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:21:00,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:21:00,846 INFO L87 Difference]: Start difference. First operand 3413 states and 4202 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:02,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:02,157 INFO L93 Difference]: Finished difference Result 7410 states and 9075 transitions. [2024-11-28 04:21:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:21:02,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-11-28 04:21:02,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:02,168 INFO L225 Difference]: With dead ends: 7410 [2024-11-28 04:21:02,168 INFO L226 Difference]: Without dead ends: 4164 [2024-11-28 04:21:02,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:21:02,172 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:02,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 894 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:21:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2024-11-28 04:21:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3715. [2024-11-28 04:21:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 3451 states have (on average 1.213851057664445) internal successors, (4189), 3474 states have internal predecessors, (4189), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:21:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 4565 transitions. [2024-11-28 04:21:02,680 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 4565 transitions. Word has length 159 [2024-11-28 04:21:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:02,680 INFO L471 AbstractCegarLoop]: Abstraction has 3715 states and 4565 transitions. [2024-11-28 04:21:02,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 4565 transitions. [2024-11-28 04:21:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:21:02,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:02,682 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:02,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:21:02,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:02,882 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:02,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1599805045, now seen corresponding path program 1 times [2024-11-28 04:21:02,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:02,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879522896] [2024-11-28 04:21:02,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:02,883 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 [2024-11-28 04:21:02,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:02,886 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:02,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:21:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:03,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:21:03,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:03,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 11 [2024-11-28 04:21:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:21:03,469 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:03,469 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:03,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879522896] [2024-11-28 04:21:03,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879522896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:03,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:03,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:21:03,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322680392] [2024-11-28 04:21:03,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:03,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:21:03,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:03,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:21:03,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:21:03,470 INFO L87 Difference]: Start difference. First operand 3715 states and 4565 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:04,831 INFO L93 Difference]: Finished difference Result 7309 states and 9012 transitions. [2024-11-28 04:21:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:21:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-11-28 04:21:04,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:04,843 INFO L225 Difference]: With dead ends: 7309 [2024-11-28 04:21:04,843 INFO L226 Difference]: Without dead ends: 4278 [2024-11-28 04:21:04,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:21:04,846 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 119 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:04,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 823 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:21:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-11-28 04:21:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 3676. [2024-11-28 04:21:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3412 states have (on average 1.2101406799531067) internal successors, (4129), 3435 states have internal predecessors, (4129), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:21:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 4505 transitions. [2024-11-28 04:21:05,362 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 4505 transitions. Word has length 159 [2024-11-28 04:21:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:05,362 INFO L471 AbstractCegarLoop]: Abstraction has 3676 states and 4505 transitions. [2024-11-28 04:21:05,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 4505 transitions. [2024-11-28 04:21:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:21:05,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:05,364 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:05,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:21:05,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:05,564 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:05,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1012999031, now seen corresponding path program 1 times [2024-11-28 04:21:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:05,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067399339] [2024-11-28 04:21:05,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:05,566 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 [2024-11-28 04:21:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:05,570 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:06,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:21:06,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:06,125 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 [2024-11-28 04:21:06,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 [2024-11-28 04:21:06,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 11 [2024-11-28 04:21:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:21:06,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:06,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:06,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067399339] [2024-11-28 04:21:06,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067399339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:06,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:06,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:21:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254304177] [2024-11-28 04:21:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:06,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:21:06,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:06,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:21:06,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:21:06,337 INFO L87 Difference]: Start difference. First operand 3676 states and 4505 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:08,148 INFO L93 Difference]: Finished difference Result 6693 states and 8230 transitions. [2024-11-28 04:21:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:21:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-11-28 04:21:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:08,159 INFO L225 Difference]: With dead ends: 6693 [2024-11-28 04:21:08,159 INFO L226 Difference]: Without dead ends: 3701 [2024-11-28 04:21:08,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:21:08,163 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 122 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:08,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1771 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:21:08,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2024-11-28 04:21:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3651. [2024-11-28 04:21:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 3387 states have (on average 1.2096250369058164) internal successors, (4097), 3410 states have internal predecessors, (4097), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:21:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 4473 transitions. [2024-11-28 04:21:08,715 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 4473 transitions. Word has length 159 [2024-11-28 04:21:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:08,715 INFO L471 AbstractCegarLoop]: Abstraction has 3651 states and 4473 transitions. [2024-11-28 04:21:08,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 4473 transitions. [2024-11-28 04:21:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:21:08,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:08,717 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:08,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:08,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:08,918 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:08,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1451605858, now seen corresponding path program 1 times [2024-11-28 04:21:08,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:08,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015857690] [2024-11-28 04:21:08,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:08,919 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 [2024-11-28 04:21:08,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:08,921 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:08,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2024-11-28 04:21:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:09,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:21:09,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:09,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:21:09,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 24 [2024-11-28 04:21:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:21:10,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:10,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015857690] [2024-11-28 04:21:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015857690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:10,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:10,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:21:10,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582926496] [2024-11-28 04:21:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:10,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:10,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:10,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:10,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:10,066 INFO L87 Difference]: Start difference. First operand 3651 states and 4473 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:12,928 INFO L93 Difference]: Finished difference Result 7633 states and 9312 transitions. [2024-11-28 04:21:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:21:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-11-28 04:21:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:12,938 INFO L225 Difference]: With dead ends: 7633 [2024-11-28 04:21:12,938 INFO L226 Difference]: Without dead ends: 3990 [2024-11-28 04:21:12,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:21:12,942 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 154 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:12,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1690 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:21:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2024-11-28 04:21:13,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3409. [2024-11-28 04:21:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3145 states have (on average 1.2006359300476948) internal successors, (3776), 3168 states have internal predecessors, (3776), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:21:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4152 transitions. [2024-11-28 04:21:13,403 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4152 transitions. Word has length 159 [2024-11-28 04:21:13,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:13,404 INFO L471 AbstractCegarLoop]: Abstraction has 3409 states and 4152 transitions. [2024-11-28 04:21:13,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:13,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4152 transitions. [2024-11-28 04:21:13,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-28 04:21:13,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:13,407 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:13,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2024-11-28 04:21:13,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:13,608 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:13,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash -841432172, now seen corresponding path program 1 times [2024-11-28 04:21:13,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:13,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162019971] [2024-11-28 04:21:13,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:13,609 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 [2024-11-28 04:21:13,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:13,615 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:13,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:14,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:21:14,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2284 trivial. 0 not checked. [2024-11-28 04:21:14,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:14,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:14,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162019971] [2024-11-28 04:21:14,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162019971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:14,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:14,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:21:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644142838] [2024-11-28 04:21:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:14,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:21:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:14,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:21:14,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:21:14,275 INFO L87 Difference]: Start difference. First operand 3409 states and 4152 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:14,858 INFO L93 Difference]: Finished difference Result 6408 states and 7694 transitions. [2024-11-28 04:21:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:21:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 292 [2024-11-28 04:21:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:14,868 INFO L225 Difference]: With dead ends: 6408 [2024-11-28 04:21:14,868 INFO L226 Difference]: Without dead ends: 3155 [2024-11-28 04:21:14,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:21:14,871 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 63 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:14,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 776 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:21:14,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2024-11-28 04:21:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3123. [2024-11-28 04:21:15,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 2859 states have (on average 1.1409583770549143) internal successors, (3262), 2882 states have internal predecessors, (3262), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:21:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3638 transitions. [2024-11-28 04:21:15,338 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3638 transitions. Word has length 292 [2024-11-28 04:21:15,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:15,338 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 3638 transitions. [2024-11-28 04:21:15,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3638 transitions. [2024-11-28 04:21:15,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-28 04:21:15,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:15,343 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:15,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:21:15,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:15,544 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:15,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash -622577454, now seen corresponding path program 1 times [2024-11-28 04:21:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:15,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381839438] [2024-11-28 04:21:15,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:15,546 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 [2024-11-28 04:21:15,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:15,548 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:15,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-11-28 04:21:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:16,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:21:16,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 1176 proven. 39 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-28 04:21:16,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:21:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2024-11-28 04:21:16,946 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:16,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381839438] [2024-11-28 04:21:16,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381839438] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:21:16,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:21:16,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:21:16,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771586771] [2024-11-28 04:21:16,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:16,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:21:16,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:16,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:21:16,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:21:16,949 INFO L87 Difference]: Start difference. First operand 3123 states and 3638 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:17,630 INFO L93 Difference]: Finished difference Result 5923 states and 6876 transitions. [2024-11-28 04:21:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:21:17,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 292 [2024-11-28 04:21:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:17,640 INFO L225 Difference]: With dead ends: 5923 [2024-11-28 04:21:17,640 INFO L226 Difference]: Without dead ends: 2956 [2024-11-28 04:21:17,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:21:17,644 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 120 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:17,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 440 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:21:17,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2024-11-28 04:21:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2287. [2024-11-28 04:21:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2287 states, 2051 states have (on average 1.1379814724524622) internal successors, (2334), 2065 states have internal predecessors, (2334), 164 states have call successors, (164), 71 states have call predecessors, (164), 71 states have return successors, (164), 150 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 04:21:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 2662 transitions. [2024-11-28 04:21:18,101 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 2662 transitions. Word has length 292 [2024-11-28 04:21:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:18,101 INFO L471 AbstractCegarLoop]: Abstraction has 2287 states and 2662 transitions. [2024-11-28 04:21:18,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 2662 transitions. [2024-11-28 04:21:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-28 04:21:18,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:18,106 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:18,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2024-11-28 04:21:18,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:18,307 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:18,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash 650424795, now seen corresponding path program 1 times [2024-11-28 04:21:18,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651805117] [2024-11-28 04:21:18,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:18,308 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 [2024-11-28 04:21:18,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:18,310 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:18,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:18,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:21:18,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:19,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select 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 15 [2024-11-28 04:21:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 1177 proven. 39 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-28 04:21:19,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:21:19,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2024-11-28 04:21:19,743 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:19,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651805117] [2024-11-28 04:21:19,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651805117] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:21:19,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:21:19,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-28 04:21:19,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48410896] [2024-11-28 04:21:19,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:19,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:21:19,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:19,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:21:19,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:21:19,745 INFO L87 Difference]: Start difference. First operand 2287 states and 2662 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:20,376 INFO L93 Difference]: Finished difference Result 4039 states and 4692 transitions. [2024-11-28 04:21:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:21:20,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 297 [2024-11-28 04:21:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:20,385 INFO L225 Difference]: With dead ends: 4039 [2024-11-28 04:21:20,386 INFO L226 Difference]: Without dead ends: 2063 [2024-11-28 04:21:20,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:20,388 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 110 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:20,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 517 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:21:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-11-28 04:21:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1875. [2024-11-28 04:21:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1651 states have (on average 1.1393095093882495) internal successors, (1881), 1659 states have internal predecessors, (1881), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 04:21:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2185 transitions. [2024-11-28 04:21:20,835 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2185 transitions. Word has length 297 [2024-11-28 04:21:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:20,835 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2185 transitions. [2024-11-28 04:21:20,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:20,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2185 transitions. [2024-11-28 04:21:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:21:20,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:20,839 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:20,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:21:21,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:21,040 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:21,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:21,040 INFO L85 PathProgramCache]: Analyzing trace with hash 643148504, now seen corresponding path program 1 times [2024-11-28 04:21:21,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:21,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183616544] [2024-11-28 04:21:21,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:21,041 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 [2024-11-28 04:21:21,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:21,044 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:21,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:21:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:21,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:21:21,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-11-28 04:21:21,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:21,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:21,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183616544] [2024-11-28 04:21:21,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183616544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:21,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:21,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:21:21,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880433751] [2024-11-28 04:21:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:21,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:21:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:21,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:21:21,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:21:21,890 INFO L87 Difference]: Start difference. First operand 1875 states and 2185 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:22,986 INFO L93 Difference]: Finished difference Result 3632 states and 4240 transitions. [2024-11-28 04:21:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:21:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 300 [2024-11-28 04:21:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:22,996 INFO L225 Difference]: With dead ends: 3632 [2024-11-28 04:21:22,996 INFO L226 Difference]: Without dead ends: 2164 [2024-11-28 04:21:22,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:21:22,999 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 118 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:22,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 529 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:21:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2024-11-28 04:21:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1872. [2024-11-28 04:21:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1648 states have (on average 1.1316747572815533) internal successors, (1865), 1656 states have internal predecessors, (1865), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 04:21:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2169 transitions. [2024-11-28 04:21:23,449 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2169 transitions. Word has length 300 [2024-11-28 04:21:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:23,449 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2169 transitions. [2024-11-28 04:21:23,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2169 transitions. [2024-11-28 04:21:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-28 04:21:23,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:23,453 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:23,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-28 04:21:23,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:23,654 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:23,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1592885135, now seen corresponding path program 1 times [2024-11-28 04:21:23,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:23,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777446430] [2024-11-28 04:21:23,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:23,655 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 [2024-11-28 04:21:23,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:23,657 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:23,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:24,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:21:24,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:25,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:21:25,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 30 [2024-11-28 04:21:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-11-28 04:21:25,230 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:25,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:25,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777446430] [2024-11-28 04:21:25,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777446430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:25,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:25,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:21:25,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845104721] [2024-11-28 04:21:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:25,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:21:25,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:25,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:21:25,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:21:25,232 INFO L87 Difference]: Start difference. First operand 1872 states and 2169 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:27,107 INFO L93 Difference]: Finished difference Result 3565 states and 4116 transitions. [2024-11-28 04:21:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:21:27,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-11-28 04:21:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:27,117 INFO L225 Difference]: With dead ends: 3565 [2024-11-28 04:21:27,117 INFO L226 Difference]: Without dead ends: 2100 [2024-11-28 04:21:27,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:21:27,119 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 97 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:27,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1368 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:21:27,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-11-28 04:21:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1860. [2024-11-28 04:21:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1636 states have (on average 1.1253056234718826) internal successors, (1841), 1644 states have internal predecessors, (1841), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 04:21:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2145 transitions. [2024-11-28 04:21:27,496 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2145 transitions. Word has length 302 [2024-11-28 04:21:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:27,497 INFO L471 AbstractCegarLoop]: Abstraction has 1860 states and 2145 transitions. [2024-11-28 04:21:27,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2145 transitions. [2024-11-28 04:21:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-28 04:21:27,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:27,499 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:27,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:27,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:27,699 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:27,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash 391318587, now seen corresponding path program 1 times [2024-11-28 04:21:27,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:27,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864663678] [2024-11-28 04:21:27,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:27,700 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 [2024-11-28 04:21:27,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:27,702 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:27,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Waiting until timeout for monitored process [2024-11-28 04:21:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:28,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:21:28,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:28,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:21:28,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 36 [2024-11-28 04:21:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-11-28 04:21:28,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:28,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:28,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864663678] [2024-11-28 04:21:28,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864663678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:28,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:28,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:21:28,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143970097] [2024-11-28 04:21:28,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:28,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:21:28,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:28,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:21:28,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:21:28,831 INFO L87 Difference]: Start difference. First operand 1860 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:30,745 INFO L93 Difference]: Finished difference Result 3689 states and 4255 transitions. [2024-11-28 04:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:21:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-11-28 04:21:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:30,756 INFO L225 Difference]: With dead ends: 3689 [2024-11-28 04:21:30,756 INFO L226 Difference]: Without dead ends: 2236 [2024-11-28 04:21:30,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:21:30,758 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 206 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:30,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 964 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:21:30,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2024-11-28 04:21:31,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1860. [2024-11-28 04:21:31,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1636 states have (on average 1.1253056234718826) internal successors, (1841), 1644 states have internal predecessors, (1841), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 04:21:31,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2145 transitions. [2024-11-28 04:21:31,201 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2145 transitions. Word has length 302 [2024-11-28 04:21:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:31,202 INFO L471 AbstractCegarLoop]: Abstraction has 1860 states and 2145 transitions. [2024-11-28 04:21:31,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2145 transitions. [2024-11-28 04:21:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-28 04:21:31,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:21:31,206 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:31,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:21:31,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:31,406 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:21:31,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1207904129, now seen corresponding path program 1 times [2024-11-28 04:21:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:21:31,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180703033] [2024-11-28 04:21:31,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:21:31,408 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 [2024-11-28 04:21:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:21:31,410 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:21:31,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:21:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:21:32,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:21:32,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:21:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-11-28 04:21:32,511 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:21:32,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:21:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180703033] [2024-11-28 04:21:32,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180703033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:32,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:32,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:21:32,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725102241] [2024-11-28 04:21:32,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:32,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:21:32,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:21:32,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:21:32,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:21:32,513 INFO L87 Difference]: Start difference. First operand 1860 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:21:33,903 INFO L93 Difference]: Finished difference Result 3582 states and 4109 transitions. [2024-11-28 04:21:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:21:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-11-28 04:21:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:21:33,910 INFO L225 Difference]: With dead ends: 3582 [2024-11-28 04:21:33,910 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:21:33,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:21:33,912 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 112 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:21:33,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 978 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:21:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:21:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:21:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:21:33,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2024-11-28 04:21:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:21:33,918 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:21:33,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:21:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:21:33,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:21:33,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:21:33,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:21:34,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c48918f-d516-427e-aae5-aa4711d397ef/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:21:34,124 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:21:34,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.