./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08148e8c3c8eecfc4014e5c0b3637b2b2d997939cef63f1309d0f584d4ec63a9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:01:29,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:01:29,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:01:29,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:01:29,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:01:30,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:01:30,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:01:30,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:01:30,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:01:30,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:01:30,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:01:30,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:01:30,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:01:30,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:01:30,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:01:30,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:01:30,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:01:30,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:01:30,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:01:30,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:01:30,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:01:30,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:01:30,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:01:30,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:01:30,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:01:30,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:01:30,034 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08148e8c3c8eecfc4014e5c0b3637b2b2d997939cef63f1309d0f584d4ec63a9 [2024-11-13 13:01:30,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:01:30,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:01:30,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:01:30,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:01:30,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:01:30,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i Unable to find full path for "g++" [2024-11-13 13:01:32,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:01:32,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:01:32,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i [2024-11-13 13:01:33,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/00bb8f89c/084245dd3eef48fd9548910094dec019/FLAG69c28658a [2024-11-13 13:01:33,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/00bb8f89c/084245dd3eef48fd9548910094dec019 [2024-11-13 13:01:33,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:01:33,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:01:33,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:01:33,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:01:33,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:01:33,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2afa28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33, skipping insertion in model container [2024-11-13 13:01:33,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:01:33,323 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i[916,929] [2024-11-13 13:01:33,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:01:33,453 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:01:33,469 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i[916,929] [2024-11-13 13:01:33,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:01:33,550 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:01:33,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33 WrapperNode [2024-11-13 13:01:33,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:01:33,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:01:33,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:01:33,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:01:33,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,657 INFO L138 Inliner]: procedures = 30, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 397 [2024-11-13 13:01:33,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:01:33,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:01:33,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:01:33,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:01:33,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,689 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-13 13:01:33,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:01:33,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:01:33,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:01:33,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:01:33,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (1/1) ... [2024-11-13 13:01:33,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:01:33,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:33,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:01:33,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:01:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:01:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:01:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:01:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:01:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:01:33,967 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:01:33,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:01:34,855 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-11-13 13:01:34,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:01:34,874 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:01:34,875 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:01:34,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:01:34 BoogieIcfgContainer [2024-11-13 13:01:34,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:01:34,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:01:34,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:01:34,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:01:34,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:01:33" (1/3) ... [2024-11-13 13:01:34,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711d8549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:01:34, skipping insertion in model container [2024-11-13 13:01:34,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:33" (2/3) ... [2024-11-13 13:01:34,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711d8549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:01:34, skipping insertion in model container [2024-11-13 13:01:34,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:01:34" (3/3) ... [2024-11-13 13:01:34,889 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-41.i [2024-11-13 13:01:34,910 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:01:34,913 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-41.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:01:34,986 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:01:35,001 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;@7702bf91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:01:35,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:01:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:01:35,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:35,025 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:35,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:35,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1495649539, now seen corresponding path program 1 times [2024-11-13 13:01:35,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:35,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488221139] [2024-11-13 13:01:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:01:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:01:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:01:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:01:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:01:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 13:01:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:01:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:01:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:01:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:01:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:01:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:01:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:01:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:01:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:01:35,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488221139] [2024-11-13 13:01:35,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488221139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:35,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:01:35,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459719600] [2024-11-13 13:01:35,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:35,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:01:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:01:35,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:01:35,656 INFO L87 Difference]: Start difference. First operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:35,712 INFO L93 Difference]: Finished difference Result 167 states and 260 transitions. [2024-11-13 13:01:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:01:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-13 13:01:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:35,727 INFO L225 Difference]: With dead ends: 167 [2024-11-13 13:01:35,728 INFO L226 Difference]: Without dead ends: 81 [2024-11-13 13:01:35,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:01:35,741 INFO L432 NwaCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:35,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:01:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-13 13:01:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-13 13:01:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2024-11-13 13:01:35,804 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 115 transitions. Word has length 114 [2024-11-13 13:01:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:35,805 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 115 transitions. [2024-11-13 13:01:35,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2024-11-13 13:01:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:01:35,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:35,809 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:35,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:01:35,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:35,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash -258028287, now seen corresponding path program 1 times [2024-11-13 13:01:35,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:35,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397990135] [2024-11-13 13:01:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:01:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:01:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:01:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:01:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:01:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 13:01:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:01:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:01:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:01:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:01:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:01:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:01:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:01:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:01:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:01:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397990135] [2024-11-13 13:01:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397990135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:01:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883374712] [2024-11-13 13:01:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:01:36,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:01:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:01:36,501 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:36,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:36,617 INFO L93 Difference]: Finished difference Result 162 states and 231 transitions. [2024-11-13 13:01:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:01:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-13 13:01:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:36,621 INFO L225 Difference]: With dead ends: 162 [2024-11-13 13:01:36,621 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 13:01:36,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:01:36,627 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:36,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 325 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:01:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 13:01:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2024-11-13 13:01:36,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.328358208955224) internal successors, (89), 67 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2024-11-13 13:01:36,650 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 114 [2024-11-13 13:01:36,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:36,653 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2024-11-13 13:01:36,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2024-11-13 13:01:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:01:36,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:36,659 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:36,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:01:36,660 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:36,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 422030083, now seen corresponding path program 1 times [2024-11-13 13:01:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:36,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454647398] [2024-11-13 13:01:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:36,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:01:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:01:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:01:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:01:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:01:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 13:01:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:01:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:01:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:01:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:01:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:01:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:01:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:01:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:01:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:01:37,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:37,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454647398] [2024-11-13 13:01:37,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454647398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:37,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:37,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:01:37,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157209052] [2024-11-13 13:01:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:37,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:01:37,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:37,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:01:37,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:01:37,742 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:38,246 INFO L93 Difference]: Finished difference Result 199 states and 278 transitions. [2024-11-13 13:01:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:01:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-13 13:01:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:38,250 INFO L225 Difference]: With dead ends: 199 [2024-11-13 13:01:38,250 INFO L226 Difference]: Without dead ends: 119 [2024-11-13 13:01:38,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:38,252 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:38,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 434 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:01:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-13 13:01:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2024-11-13 13:01:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3298969072164948) internal successors, (129), 98 states have internal predecessors, (129), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 13:01:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 161 transitions. [2024-11-13 13:01:38,273 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 161 transitions. Word has length 114 [2024-11-13 13:01:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:38,274 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 161 transitions. [2024-11-13 13:01:38,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 161 transitions. [2024-11-13 13:01:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 13:01:38,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:38,277 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:38,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:01:38,278 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:38,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:38,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1519232392, now seen corresponding path program 1 times [2024-11-13 13:01:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392833566] [2024-11-13 13:01:38,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:01:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:01:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:01:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:01:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:01:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 13:01:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 13:01:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:01:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:01:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:01:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:01:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:01:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:01:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:01:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:01:38,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392833566] [2024-11-13 13:01:38,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392833566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:38,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:01:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51694504] [2024-11-13 13:01:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:38,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:38,895 INFO L87 Difference]: Start difference. First operand 116 states and 161 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:38,922 INFO L93 Difference]: Finished difference Result 200 states and 277 transitions. [2024-11-13 13:01:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:38,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-13 13:01:38,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:38,930 INFO L225 Difference]: With dead ends: 200 [2024-11-13 13:01:38,930 INFO L226 Difference]: Without dead ends: 87 [2024-11-13 13:01:38,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:38,935 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:38,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:01:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-13 13:01:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-13 13:01:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 69 states have internal predecessors, (86), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 13:01:38,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-11-13 13:01:38,961 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 115 [2024-11-13 13:01:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:38,965 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-11-13 13:01:38,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:01:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-11-13 13:01:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 13:01:38,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:38,972 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:38,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:01:38,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:38,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:38,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1965508708, now seen corresponding path program 1 times [2024-11-13 13:01:38,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:38,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688936302] [2024-11-13 13:01:38,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:38,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:01:39,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:01:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:01:39,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:01:39,619 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:01:39,621 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:01:39,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:01:39,630 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 13:01:39,750 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:01:39,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:01:39 BoogieIcfgContainer [2024-11-13 13:01:39,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:01:39,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:01:39,761 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:01:39,761 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:01:39,763 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:01:34" (3/4) ... [2024-11-13 13:01:39,768 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:01:39,770 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:01:39,771 INFO L158 Benchmark]: Toolchain (without parser) took 6701.18ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 119.3MB in the beginning and 177.9MB in the end (delta: -58.6MB). Peak memory consumption was 201.8MB. Max. memory is 16.1GB. [2024-11-13 13:01:39,772 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:01:39,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.85ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 103.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:01:39,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.06ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 100.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:01:39,778 INFO L158 Benchmark]: Boogie Preprocessor took 65.14ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:01:39,779 INFO L158 Benchmark]: RCFGBuilder took 1151.59ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 70.0MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 13:01:39,779 INFO L158 Benchmark]: TraceAbstraction took 4880.32ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 69.4MB in the beginning and 178.8MB in the end (delta: -109.4MB). Peak memory consumption was 151.4MB. Max. memory is 16.1GB. [2024-11-13 13:01:39,780 INFO L158 Benchmark]: Witness Printer took 9.75ms. Allocated memory is still 402.7MB. Free memory was 178.8MB in the beginning and 177.9MB in the end (delta: 945.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:01:39,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.85ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 103.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.06ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 100.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.14ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1151.59ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 70.0MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4880.32ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 69.4MB in the beginning and 178.8MB in the end (delta: -109.4MB). Peak memory consumption was 151.4MB. Max. memory is 16.1GB. * Witness Printer took 9.75ms. Allocated memory is still 402.7MB. Free memory was 178.8MB in the beginning and 177.9MB in the end (delta: 945.2kB). There was no memory consumed. 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 someBinaryArithmeticDOUBLEoperation at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 59, overapproximation of someBinaryDOUBLEComparisonOperation at line 112. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { -16, 0, -8, 5, 2, 0, 8.5, 999999999999.6, 10, -1, 16, 64 }; [L51] signed char last_1_WrapperStruct00_var_1_1 = -16; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_1=-16] [L116] isInitial = 1 [L117] FCALL initially() [L118] COND TRUE 1 [L119] CALL updateLastVariables() [L109] EXPR WrapperStruct00.var_1_1 [L109] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L119] RET updateLastVariables() [L120] CALL updateVariables() [L86] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L88] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L89] WrapperStruct00.var_1_6 = __VERIFIER_nondet_char() [L90] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L91] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L92] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L93] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L95] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L97] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L98] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L99] EXPR WrapperStruct00.var_1_13 [L99] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_13 [L99] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L99] EXPR (WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L100] WrapperStruct00.var_1_15 = __VERIFIER_nondet_char() [L101] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= -128) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= -128) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L102] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L103] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_15 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_15 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L104] WrapperStruct00.var_1_17 = __VERIFIER_nondet_uchar() [L105] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L106] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L120] RET updateVariables() [L121] CALL step() [L55] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L55] COND TRUE WrapperStruct00.var_1_5 && (last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) [L56] EXPR WrapperStruct00.var_1_17 [L56] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_17 [L58] EXPR WrapperStruct00.var_1_13 [L58] WrapperStruct00.var_1_12 = (WrapperStruct00.var_1_13 - 8.3) [L59] EXPR WrapperStruct00.var_1_13 [L59] EXPR WrapperStruct00.var_1_12 [L59] unsigned char stepLocal_1 = WrapperStruct00.var_1_13 >= WrapperStruct00.var_1_12; [L60] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16, stepLocal_1=1] [L60] COND TRUE WrapperStruct00.var_1_5 && stepLocal_1 [L61] EXPR WrapperStruct00.var_1_16 [L61] WrapperStruct00.var_1_14 = WrapperStruct00.var_1_16 [L65] WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L65] COND TRUE WrapperStruct00.var_1_5 [L66] EXPR WrapperStruct00.var_1_16 [L66] EXPR WrapperStruct00.var_1_16 [L66] WrapperStruct00.var_1_8 = (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16) [L74] EXPR WrapperStruct00.var_1_8 [L74] EXPR WrapperStruct00.var_1_16 [L74] unsigned long int stepLocal_0 = (WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16; [L75] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16, stepLocal_0=0] [L75] COND FALSE !(stepLocal_0 > WrapperStruct00.var_1_8) [L82] EXPR WrapperStruct00.var_1_6 [L82] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_6 [L121] RET step() [L122] CALL, EXPR property() [L112] EXPR WrapperStruct00.var_1_8 [L112] EXPR WrapperStruct00.var_1_16 [L112] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR (((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6)) [L112] EXPR WrapperStruct00.var_1_1 [L112] EXPR WrapperStruct00.var_1_6 [L112] EXPR (((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR ((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)))) [L112] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))) [L112] EXPR WrapperStruct00.var_1_8 [L112] EXPR WrapperStruct00.var_1_16 [L112] EXPR WrapperStruct00.var_1_16 [L112] EXPR WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR ((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR (((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_12 == ((double) (WrapperStruct00.var_1_13 - 8.3))) [L112] EXPR WrapperStruct00.var_1_12 [L112] EXPR WrapperStruct00.var_1_13 [L112] EXPR (((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_12 == ((double) (WrapperStruct00.var_1_13 - 8.3))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR ((((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_12 == ((double) (WrapperStruct00.var_1_13 - 8.3)))) && ((WrapperStruct00.var_1_5 && (WrapperStruct00.var_1_13 >= WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112] EXPR (((((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_12 == ((double) (WrapperStruct00.var_1_13 - 8.3)))) && ((WrapperStruct00.var_1_5 && (WrapperStruct00.var_1_13 >= WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_15)))) && ((WrapperStruct00.var_1_5 && (last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_17)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L112-L113] return (((((((WrapperStruct00.var_1_8 & 0u) * WrapperStruct00.var_1_16) > WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((signed char) ((16 + WrapperStruct00.var_1_6) + WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_6) < 0 ) ? -(WrapperStruct00.var_1_6) : (WrapperStruct00.var_1_6)))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_8 == ((unsigned short int) (WrapperStruct00.var_1_16 + WrapperStruct00.var_1_16))) : (((WrapperStruct00.var_1_16 > WrapperStruct00.var_1_14) || WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_8 == ((unsigned short int) WrapperStruct00.var_1_16))))) && (WrapperStruct00.var_1_12 == ((double) (WrapperStruct00.var_1_13 - 8.3)))) && ((WrapperStruct00.var_1_5 && (WrapperStruct00.var_1_13 >= WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_15)))) && ((WrapperStruct00.var_1_5 && (last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_17)) : 1) ; [L122] RET, EXPR property() [L122] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=-16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 1085 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 623 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 462 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 453 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1456/1456 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:01:39,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08148e8c3c8eecfc4014e5c0b3637b2b2d997939cef63f1309d0f584d4ec63a9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:01:43,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:01:43,327 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 13:01:43,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:01:43,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:01:43,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:01:43,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:01:43,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:01:43,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:01:43,387 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:01:43,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:01:43,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:01:43,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:01:43,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:01:43,388 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:01:43,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:01:43,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:01:43,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:01:43,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:01:43,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:01:43,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:01:43,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:01:43,391 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:01:43,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:01:43,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:01:43,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:01:43,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:01:43,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:01:43,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:01:43,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:01:43,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:01:43,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:01:43,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:01:43,393 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:01:43,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:01:43,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:01:43,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:01:43,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:01:43,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:01:43,394 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08148e8c3c8eecfc4014e5c0b3637b2b2d997939cef63f1309d0f584d4ec63a9 [2024-11-13 13:01:43,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:01:43,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:01:43,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:01:43,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:01:43,802 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:01:43,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i Unable to find full path for "g++" [2024-11-13 13:01:46,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:01:46,476 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:01:46,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i [2024-11-13 13:01:46,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/2f121fc49/7afcc5780db246b8bd05e141fe2339dd/FLAGa38291e1e [2024-11-13 13:01:46,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/data/2f121fc49/7afcc5780db246b8bd05e141fe2339dd [2024-11-13 13:01:46,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:01:46,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:01:46,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:01:46,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:01:46,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:01:46,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:01:46" (1/1) ... [2024-11-13 13:01:46,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f35d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:46, skipping insertion in model container [2024-11-13 13:01:46,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:01:46" (1/1) ... [2024-11-13 13:01:46,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:01:46,776 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i[916,929] [2024-11-13 13:01:46,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:01:46,879 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:01:46,895 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_e69b2238-1c94-434b-aab3-5b4f9261efbb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-41.i[916,929] [2024-11-13 13:01:47,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:01:47,054 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:01:47,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47 WrapperNode [2024-11-13 13:01:47,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:01:47,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:01:47,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:01:47,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:01:47,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,150 INFO L138 Inliner]: procedures = 37, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 393 [2024-11-13 13:01:47,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:01:47,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:01:47,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:01:47,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:01:47,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,212 INFO L175 MemorySlicer]: Split 112 memory accesses to 2 slices as follows [2, 110]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 30 writes are split as follows [0, 30]. [2024-11-13 13:01:47,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:01:47,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:01:47,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:01:47,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:01:47,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (1/1) ... [2024-11-13 13:01:47,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:01:47,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:47,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:01:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-13 13:01:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-13 13:01:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:01:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:01:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-13 13:01:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-13 13:01:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 13:01:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 13:01:47,627 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:01:47,629 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:01:48,835 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-11-13 13:01:48,835 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:01:48,854 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:01:48,858 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:01:48,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:01:48 BoogieIcfgContainer [2024-11-13 13:01:48,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:01:48,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:01:48,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:01:48,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:01:48,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:01:46" (1/3) ... [2024-11-13 13:01:48,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:01:48, skipping insertion in model container [2024-11-13 13:01:48,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:01:47" (2/3) ... [2024-11-13 13:01:48,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:01:48, skipping insertion in model container [2024-11-13 13:01:48,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:01:48" (3/3) ... [2024-11-13 13:01:48,880 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-41.i [2024-11-13 13:01:48,907 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:01:48,910 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-41.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:01:48,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:01:49,017 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;@422ab77c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:01:49,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:01:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:49,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:01:49,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:49,044 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:49,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:49,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1498557875, now seen corresponding path program 1 times [2024-11-13 13:01:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:01:49,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962261651] [2024-11-13 13:01:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:49,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:01:49,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:01:49,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:01:49,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 13:01:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:49,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:01:49,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-13 13:01:49,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:01:49,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:01:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962261651] [2024-11-13 13:01:49,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962261651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:49,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:49,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:01:49,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941743512] [2024-11-13 13:01:49,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:49,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:01:49,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:01:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:01:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:01:49,725 INFO L87 Difference]: Start difference. First operand has 89 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 73 states have internal predecessors, (101), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:49,776 INFO L93 Difference]: Finished difference Result 167 states and 260 transitions. [2024-11-13 13:01:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:01:49,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-13 13:01:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:49,790 INFO L225 Difference]: With dead ends: 167 [2024-11-13 13:01:49,791 INFO L226 Difference]: Without dead ends: 81 [2024-11-13 13:01:49,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:01:49,801 INFO L432 NwaCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:49,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:01:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-13 13:01:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-13 13:01:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2024-11-13 13:01:49,858 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 115 transitions. Word has length 114 [2024-11-13 13:01:49,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:49,859 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 115 transitions. [2024-11-13 13:01:49,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2024-11-13 13:01:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:01:49,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:49,863 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:49,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 13:01:50,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:01:50,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:50,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1558788169, now seen corresponding path program 1 times [2024-11-13 13:01:50,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:01:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147611047] [2024-11-13 13:01:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:50,067 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 [2024-11-13 13:01:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:01:50,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:01:50,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 13:01:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:01:50,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:51,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:01:51,063 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 173 treesize of output 65 [2024-11-13 13:01:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 13:01:51,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:01:51,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:01:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147611047] [2024-11-13 13:01:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147611047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:51,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:01:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568019163] [2024-11-13 13:01:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:51,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:01:51,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:01:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:01:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:01:51,130 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:52,401 INFO L93 Difference]: Finished difference Result 160 states and 228 transitions. [2024-11-13 13:01:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:01:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-13 13:01:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:52,414 INFO L225 Difference]: With dead ends: 160 [2024-11-13 13:01:52,414 INFO L226 Difference]: Without dead ends: 82 [2024-11-13 13:01:52,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:01:52,418 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 83 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:52,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 342 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:01:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-13 13:01:52,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-11-13 13:01:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.323076923076923) internal successors, (86), 65 states have internal predecessors, (86), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:01:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 114 transitions. [2024-11-13 13:01:52,445 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 114 transitions. Word has length 114 [2024-11-13 13:01:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:52,448 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 114 transitions. [2024-11-13 13:01:52,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:01:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2024-11-13 13:01:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 13:01:52,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:52,452 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:52,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:01:52,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:01:52,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:52,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1165957661, now seen corresponding path program 1 times [2024-11-13 13:01:52,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:01:52,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513609511] [2024-11-13 13:01:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:52,655 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 [2024-11-13 13:01:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:01:52,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:01:52,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 13:01:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:53,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 13:01:53,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:53,459 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 [2024-11-13 13:01:54,184 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 47 treesize of output 34 [2024-11-13 13:01:54,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:01:54,764 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 27 [2024-11-13 13:01:55,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:01:55,244 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 46 treesize of output 37 [2024-11-13 13:01:59,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:01:59,644 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 50 treesize of output 40 [2024-11-13 13:02:00,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:00,397 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 50 treesize of output 40 [2024-11-13 13:02:00,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:00,905 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 50 treesize of output 40 [2024-11-13 13:02:00,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:00,987 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 61 treesize of output 40 [2024-11-13 13:02:01,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:01,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 52 treesize of output 60 [2024-11-13 13:02:01,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:01,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 63 [2024-11-13 13:02:01,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:01,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 72 [2024-11-13 13:02:01,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:01,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 48 [2024-11-13 13:02:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 216 proven. 60 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 13:02:01,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:02:02,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:02:02,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513609511] [2024-11-13 13:02:02,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513609511] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:02,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:02:02,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 19 [2024-11-13 13:02:02,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56508758] [2024-11-13 13:02:02,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:02,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:02:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:02:02,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:02:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=272, Unknown=1, NotChecked=0, Total=342 [2024-11-13 13:02:02,450 INFO L87 Difference]: Start difference. First operand 81 states and 114 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:03,591 INFO L93 Difference]: Finished difference Result 195 states and 272 transitions. [2024-11-13 13:02:03,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:02:03,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-13 13:02:03,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:03,624 INFO L225 Difference]: With dead ends: 195 [2024-11-13 13:02:03,625 INFO L226 Difference]: Without dead ends: 117 [2024-11-13 13:02:03,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2024-11-13 13:02:03,626 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:03,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 433 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 13:02:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-13 13:02:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2024-11-13 13:02:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 96 states have internal predecessors, (126), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 13:02:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2024-11-13 13:02:03,684 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 116 [2024-11-13 13:02:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:03,686 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-13 13:02:03,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2024-11-13 13:02:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 13:02:03,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:03,696 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:03,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 13:02:03,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:03,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:03,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 67686054, now seen corresponding path program 1 times [2024-11-13 13:02:03,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:02:03,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073406505] [2024-11-13 13:02:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:03,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:02:03,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:02:03,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 13:02:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:04,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:02:04,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:02:04,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:02:04,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:02:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073406505] [2024-11-13 13:02:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073406505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:04,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:04,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596333983] [2024-11-13 13:02:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:04,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:02:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:04,344 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:04,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:04,366 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2024-11-13 13:02:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:04,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-13 13:02:04,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:04,370 INFO L225 Difference]: With dead ends: 198 [2024-11-13 13:02:04,371 INFO L226 Difference]: Without dead ends: 87 [2024-11-13 13:02:04,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:04,372 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:04,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:02:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-13 13:02:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-13 13:02:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 68 states have (on average 1.25) internal successors, (85), 69 states have internal predecessors, (85), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 13:02:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2024-11-13 13:02:04,384 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 117 [2024-11-13 13:02:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:04,384 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2024-11-13 13:02:04,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2024-11-13 13:02:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:02:04,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:04,387 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:04,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-13 13:02:04,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:04,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:04,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:04,592 INFO L85 PathProgramCache]: Analyzing trace with hash 664381240, now seen corresponding path program 1 times [2024-11-13 13:02:04,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:02:04,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45834826] [2024-11-13 13:02:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:04,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:04,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:02:04,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:02:04,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 13:02:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:05,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:02:05,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:05,185 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 [2024-11-13 13:02:05,192 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 [2024-11-13 13:02:05,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:05,234 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 39 [2024-11-13 13:02:05,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:05,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 58 treesize of output 60 [2024-11-13 13:02:05,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:05,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 52 [2024-11-13 13:02:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:02:05,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:02:05,633 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:02:05,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45834826] [2024-11-13 13:02:05,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45834826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:05,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:05,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:02:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129790230] [2024-11-13 13:02:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:05,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:02:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:02:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:02:05,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:02:05,635 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:10,322 INFO L93 Difference]: Finished difference Result 327 states and 442 transitions. [2024-11-13 13:02:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:02:10,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-13 13:02:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:10,327 INFO L225 Difference]: With dead ends: 327 [2024-11-13 13:02:10,327 INFO L226 Difference]: Without dead ends: 248 [2024-11-13 13:02:10,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:02:10,328 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 217 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:10,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 635 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 13:02:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-13 13:02:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 169. [2024-11-13 13:02:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.2462686567164178) internal successors, (167), 136 states have internal predecessors, (167), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:02:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 227 transitions. [2024-11-13 13:02:10,365 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 227 transitions. Word has length 118 [2024-11-13 13:02:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:10,366 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 227 transitions. [2024-11-13 13:02:10,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:02:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 227 transitions. [2024-11-13 13:02:10,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:02:10,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:10,369 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:10,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 13:02:10,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:10,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:10,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:10,574 INFO L85 PathProgramCache]: Analyzing trace with hash -15677130, now seen corresponding path program 1 times [2024-11-13 13:02:10,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:02:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315321956] [2024-11-13 13:02:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:10,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:02:10,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:02:10,581 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:02:10,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 13:02:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:43,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 13:02:43,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:43,916 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 [2024-11-13 13:02:45,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:45,335 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 130 treesize of output 57 [2024-11-13 13:02:45,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:45,965 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 130 treesize of output 57 [2024-11-13 13:02:46,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:46,454 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 130 treesize of output 57 [2024-11-13 13:02:46,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 103 [2024-11-13 13:02:56,769 WARN L286 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 63 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:02:56,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:02:56,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 214 treesize of output 129 [2024-11-13 13:03:03,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:03:03,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 132 [2024-11-13 13:03:05,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:03:05,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 229 treesize of output 150 [2024-11-13 13:03:19,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:03:19,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 440 treesize of output 154 [2024-11-13 13:03:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 197 proven. 15 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-13 13:03:24,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:03:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:03:44,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:03:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315321956] [2024-11-13 13:03:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315321956] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:44,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:03:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2024-11-13 13:03:44,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386535300] [2024-11-13 13:03:44,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:03:44,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:03:44,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:03:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:03:44,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:03:44,365 INFO L87 Difference]: Start difference. First operand 169 states and 227 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:03:53,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:03:58,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:02,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:06,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:07,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:11,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:28,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:30,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:35,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:39,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:04:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:39,832 INFO L93 Difference]: Finished difference Result 370 states and 495 transitions. [2024-11-13 13:04:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:04:39,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-13 13:04:39,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:39,843 INFO L225 Difference]: With dead ends: 370 [2024-11-13 13:04:39,843 INFO L226 Difference]: Without dead ends: 209 [2024-11-13 13:04:39,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:04:39,845 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 81 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:39,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 350 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 155 Invalid, 6 Unknown, 0 Unchecked, 52.3s Time] [2024-11-13 13:04:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-13 13:04:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 184. [2024-11-13 13:04:39,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 149 states have (on average 1.2483221476510067) internal successors, (186), 151 states have internal predecessors, (186), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:04:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 246 transitions. [2024-11-13 13:04:39,868 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 246 transitions. Word has length 118 [2024-11-13 13:04:39,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:39,868 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 246 transitions. [2024-11-13 13:04:39,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:04:39,868 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 246 transitions. [2024-11-13 13:04:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:04:39,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:39,870 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:39,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:04:40,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:04:40,071 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1087083066, now seen corresponding path program 1 times [2024-11-13 13:04:40,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:04:40,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160695780] [2024-11-13 13:04:40,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:40,072 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 [2024-11-13 13:04:40,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:04:40,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:04:40,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 13:04:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:41,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 13:04:41,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:04:41,354 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 [2024-11-13 13:04:41,559 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 [2024-11-13 13:04:41,711 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 25 [2024-11-13 13:04:42,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:04:42,027 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 36 treesize of output 38 [2024-11-13 13:04:42,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 41 [2024-11-13 13:04:45,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:04:45,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 156 treesize of output 107 [2024-11-13 13:04:47,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:04:47,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 171 treesize of output 110 [2024-11-13 13:04:48,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:04:48,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 115 [2024-11-13 13:04:49,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:04:49,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 383 treesize of output 167 [2024-11-13 13:04:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 263 proven. 48 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-13 13:04:54,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:06:11,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:06:11,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160695780] [2024-11-13 13:06:11,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160695780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:06:11,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564015088] [2024-11-13 13:06:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:06:11,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:06:11,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:06:11,977 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:06:11,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:06:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:12,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:06:12,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:06:21,294 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 33 treesize of output 26 [2024-11-13 13:06:22,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:22,329 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 29 [2024-11-13 13:06:22,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:22,350 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 50 treesize of output 49 [2024-11-13 13:06:24,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 67 [2024-11-13 13:06:25,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:25,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 90 [2024-11-13 13:06:27,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:27,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 140 treesize of output 64 [2024-11-13 13:06:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-13 13:06:32,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:06:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:06:36,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564015088] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:06:36,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:06:36,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21, 13] total 35 [2024-11-13 13:06:36,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990757545] [2024-11-13 13:06:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:06:36,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:06:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:06:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:06:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1291, Unknown=2, NotChecked=0, Total=1482 [2024-11-13 13:06:36,581 INFO L87 Difference]: Start difference. First operand 184 states and 246 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:06:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:06:44,205 INFO L93 Difference]: Finished difference Result 509 states and 686 transitions. [2024-11-13 13:06:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:06:44,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-13 13:06:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:06:44,210 INFO L225 Difference]: With dead ends: 509 [2024-11-13 13:06:44,210 INFO L226 Difference]: Without dead ends: 333 [2024-11-13 13:06:44,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 88.6s TimeCoverageRelationStatistics Valid=201, Invalid=1519, Unknown=2, NotChecked=0, Total=1722 [2024-11-13 13:06:44,212 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 87 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:06:44,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 557 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 13:06:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-13 13:06:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 194. [2024-11-13 13:06:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 159 states have (on average 1.2389937106918238) internal successors, (197), 161 states have internal predecessors, (197), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:06:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 257 transitions. [2024-11-13 13:06:44,240 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 257 transitions. Word has length 118 [2024-11-13 13:06:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:06:44,241 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 257 transitions. [2024-11-13 13:06:44,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:06:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 257 transitions. [2024-11-13 13:06:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:06:44,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:06:44,242 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:06:44,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:06:44,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:06:44,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:06:44,643 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:06:44,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:06:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash 407024696, now seen corresponding path program 1 times [2024-11-13 13:06:44,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:06:44,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583780545] [2024-11-13 13:06:44,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:06:44,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:06:44,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:06:44,646 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:06:44,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 13:06:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:06:45,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 13:06:45,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:06:45,868 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 [2024-11-13 13:06:46,077 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 25 [2024-11-13 13:06:46,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:46,403 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 36 treesize of output 38 [2024-11-13 13:06:46,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:46,815 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 51 treesize of output 41 [2024-11-13 13:06:47,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 61 [2024-11-13 13:06:50,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:50,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 105 [2024-11-13 13:06:52,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:52,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 176 treesize of output 115 [2024-11-13 13:06:53,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:53,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 129 [2024-11-13 13:06:54,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:06:54,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 373 treesize of output 181 [2024-11-13 13:06:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 271 proven. 48 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-13 13:06:58,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:07:36,308 WARN L286 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:08:13,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:08:13,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583780545] [2024-11-13 13:08:13,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583780545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:08:13,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69204011] [2024-11-13 13:08:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:08:13,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:08:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:08:13,620 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:08:13,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:08:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:19,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-13 13:08:19,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:08:19,852 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 [2024-11-13 13:08:20,044 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 [2024-11-13 13:08:20,195 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 25 [2024-11-13 13:08:22,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:08:22,942 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 48 [2024-11-13 13:09:00,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:09:00,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 171 treesize of output 92 [2024-11-13 13:09:05,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:09:05,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 166 treesize of output 102 [2024-11-13 13:09:16,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:09:16,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 72 [2024-11-13 13:09:21,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 118 [2024-11-13 13:09:47,044 WARN L286 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 97 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:09:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 271 proven. 48 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-13 13:09:47,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:10:24,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69204011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:24,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:10:24,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 34 [2024-11-13 13:10:24,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366927629] [2024-11-13 13:10:24,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:10:24,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-13 13:10:24,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:10:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-13 13:10:24,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1230, Unknown=3, NotChecked=0, Total=1482 [2024-11-13 13:10:24,478 INFO L87 Difference]: Start difference. First operand 194 states and 257 transitions. Second operand has 35 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 12 states have call successors, (26), 11 states have call predecessors, (26), 12 states have return successors, (26), 9 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-13 13:10:44,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:10:55,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:05,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:17,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:21,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:25,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:29,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:34,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:36,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:40,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:44,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:54,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:11:58,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:13:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:34,163 INFO L93 Difference]: Finished difference Result 805 states and 1024 transitions. [2024-11-13 13:13:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-13 13:13:34,165 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 12 states have call successors, (26), 11 states have call predecessors, (26), 12 states have return successors, (26), 9 states have call predecessors, (26), 12 states have call successors, (26) Word has length 118 [2024-11-13 13:13:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:34,168 INFO L225 Difference]: With dead ends: 805 [2024-11-13 13:13:34,168 INFO L226 Difference]: Without dead ends: 619 [2024-11-13 13:13:34,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1804 ImplicationChecksByTransitivity, 281.3s TimeCoverageRelationStatistics Valid=1071, Invalid=5555, Unknown=16, NotChecked=0, Total=6642 [2024-11-13 13:13:34,171 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 770 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 262 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:34,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 967 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1963 Invalid, 12 Unknown, 0 Unchecked, 68.2s Time] [2024-11-13 13:13:34,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-13 13:13:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 162. [2024-11-13 13:13:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 133 states have internal predecessors, (160), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:13:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2024-11-13 13:13:34,216 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 118 [2024-11-13 13:13:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:34,216 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2024-11-13 13:13:34,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 12 states have call successors, (26), 11 states have call predecessors, (26), 12 states have return successors, (26), 9 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-13 13:13:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2024-11-13 13:13:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:13:34,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:34,218 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:34,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 13:13:34,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 13:13:34,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:34,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:34,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1398413638, now seen corresponding path program 1 times [2024-11-13 13:13:34,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:13:34,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066234877] [2024-11-13 13:13:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:34,620 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 [2024-11-13 13:13:34,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:13:34,622 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:13:34,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-13 13:13:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:35,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:13:35,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:35,082 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 [2024-11-13 13:13:35,286 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 36 treesize of output 29 [2024-11-13 13:13:35,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:35,551 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 46 treesize of output 42 [2024-11-13 13:13:35,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:35,910 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 50 treesize of output 40 [2024-11-13 13:13:36,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:36,191 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 61 treesize of output 40 [2024-11-13 13:13:36,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:36,448 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 50 treesize of output 40 [2024-11-13 13:13:36,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:36,852 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 45 treesize of output 50 [2024-11-13 13:13:37,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:37,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 77 [2024-11-13 13:13:41,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:41,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 92 treesize of output 103 [2024-11-13 13:13:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 207 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-13 13:13:42,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:13:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:13:42,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:13:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066234877] [2024-11-13 13:13:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066234877] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:42,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:42,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 17 [2024-11-13 13:13:42,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683308279] [2024-11-13 13:13:42,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:42,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:42,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:13:42,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:42,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=196, Unknown=1, NotChecked=0, Total=272 [2024-11-13 13:13:42,277 INFO L87 Difference]: Start difference. First operand 162 states and 200 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:43,442 INFO L93 Difference]: Finished difference Result 376 states and 472 transitions. [2024-11-13 13:13:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:13:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-13 13:13:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:43,445 INFO L225 Difference]: With dead ends: 376 [2024-11-13 13:13:43,445 INFO L226 Difference]: Without dead ends: 217 [2024-11-13 13:13:43,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=80, Invalid=225, Unknown=1, NotChecked=0, Total=306 [2024-11-13 13:13:43,446 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 86 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:43,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:13:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-13 13:13:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 168. [2024-11-13 13:13:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:13:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 207 transitions. [2024-11-13 13:13:43,482 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 207 transitions. Word has length 118 [2024-11-13 13:13:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:43,483 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 207 transitions. [2024-11-13 13:13:43,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 207 transitions. [2024-11-13 13:13:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:13:43,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:43,487 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:43,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:13:43,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:43,688 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:43,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1086296950, now seen corresponding path program 1 times [2024-11-13 13:13:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:13:43,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610441634] [2024-11-13 13:13:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:43,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:43,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:13:43,690 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:13:43,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-13 13:13:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:44,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:13:44,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-13 13:13:44,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:13:44,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:13:44,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610441634] [2024-11-13 13:13:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610441634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:44,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:44,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:13:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13108632] [2024-11-13 13:13:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:44,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:13:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:13:44,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:13:44,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:13:44,132 INFO L87 Difference]: Start difference. First operand 168 states and 207 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 13:13:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:44,437 INFO L93 Difference]: Finished difference Result 314 states and 383 transitions. [2024-11-13 13:13:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:13:44,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-13 13:13:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:44,440 INFO L225 Difference]: With dead ends: 314 [2024-11-13 13:13:44,440 INFO L226 Difference]: Without dead ends: 143 [2024-11-13 13:13:44,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:13:44,441 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:44,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 416 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:13:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-13 13:13:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 135. [2024-11-13 13:13:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 113 states have internal predecessors, (136), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:13:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-11-13 13:13:44,468 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 118 [2024-11-13 13:13:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:44,468 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-11-13 13:13:44,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 13:13:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-11-13 13:13:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 13:13:44,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:44,469 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:44,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-13 13:13:44,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:44,670 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:44,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:44,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1929533246, now seen corresponding path program 1 times [2024-11-13 13:13:44,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:13:44,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560425696] [2024-11-13 13:13:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:44,671 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 [2024-11-13 13:13:44,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:13:44,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:13:44,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-13 13:13:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:45,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:13:45,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:45,086 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 [2024-11-13 13:13:45,164 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 [2024-11-13 13:13:45,222 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 26 treesize of output 25 [2024-11-13 13:13:45,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:45,395 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 28 [2024-11-13 13:13:45,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:45,533 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 52 treesize of output 28 [2024-11-13 13:13:45,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:45,673 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 36 treesize of output 38 [2024-11-13 13:13:46,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:46,074 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 51 treesize of output 41 [2024-11-13 13:13:46,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:46,370 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 62 treesize of output 46 [2024-11-13 13:13:46,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:46,468 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 68 treesize of output 56 [2024-11-13 13:13:50,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:50,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 79 [2024-11-13 13:13:50,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:50,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 32 [2024-11-13 13:13:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 243 proven. 36 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-13 13:13:50,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:13:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:13:51,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:13:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560425696] [2024-11-13 13:13:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560425696] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-13 13:13:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240988343] [2024-11-13 13:13:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:51,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:13:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:51,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=183, Unknown=1, NotChecked=0, Total=240 [2024-11-13 13:13:51,128 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:52,436 INFO L93 Difference]: Finished difference Result 292 states and 358 transitions. [2024-11-13 13:13:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:13:52,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-13 13:13:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:52,438 INFO L225 Difference]: With dead ends: 292 [2024-11-13 13:13:52,438 INFO L226 Difference]: Without dead ends: 160 [2024-11-13 13:13:52,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=61, Invalid=210, Unknown=1, NotChecked=0, Total=272 [2024-11-13 13:13:52,439 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 38 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:52,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 308 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:13:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-13 13:13:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 135. [2024-11-13 13:13:52,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.1946902654867257) internal successors, (135), 113 states have internal predecessors, (135), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:13:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 163 transitions. [2024-11-13 13:13:52,461 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 163 transitions. Word has length 120 [2024-11-13 13:13:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:52,461 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 163 transitions. [2024-11-13 13:13:52,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 163 transitions. [2024-11-13 13:13:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 13:13:52,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:52,463 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:52,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:13:52,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:52,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:52,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:52,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2070081856, now seen corresponding path program 1 times [2024-11-13 13:13:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:13:52,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939678588] [2024-11-13 13:13:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:52,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:52,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:13:52,666 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:13:52,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-13 13:13:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:53,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 13:13:53,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:53,049 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 [2024-11-13 13:13:53,138 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 [2024-11-13 13:13:53,219 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 25 [2024-11-13 13:13:53,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:53,412 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 36 treesize of output 38 [2024-11-13 13:13:53,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:53,670 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 62 treesize of output 41 [2024-11-13 13:13:53,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:53,875 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 46 treesize of output 51 [2024-11-13 13:13:54,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:13:54,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 54 [2024-11-13 13:13:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 13:13:54,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:13:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:13:55,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:13:55,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939678588] [2024-11-13 13:13:55,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939678588] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:55,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:55,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-13 13:13:55,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084116850] [2024-11-13 13:13:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:55,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:13:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:13:55,189 INFO L87 Difference]: Start difference. First operand 135 states and 163 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:56,310 INFO L93 Difference]: Finished difference Result 273 states and 331 transitions. [2024-11-13 13:13:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:13:56,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-13 13:13:56,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:56,312 INFO L225 Difference]: With dead ends: 273 [2024-11-13 13:13:56,312 INFO L226 Difference]: Without dead ends: 141 [2024-11-13 13:13:56,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:13:56,313 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 86 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:56,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 257 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:13:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-13 13:13:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2024-11-13 13:13:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 102 states have internal predecessors, (120), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:13:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2024-11-13 13:13:56,339 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 120 [2024-11-13 13:13:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:56,339 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2024-11-13 13:13:56,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:13:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2024-11-13 13:13:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 13:13:56,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:56,340 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:56,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-13 13:13:56,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:56,541 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:56,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash 264643522, now seen corresponding path program 1 times [2024-11-13 13:13:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:13:56,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653814574] [2024-11-13 13:13:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:56,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:13:56,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:13:56,546 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:13:56,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-13 13:13:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:56,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 13:13:56,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:56,987 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 [2024-11-13 13:13:57,064 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 [2024-11-13 13:13:57,121 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 [2024-11-13 13:13:57,179 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 [2024-11-13 13:13:57,238 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 37 treesize of output 25 [2024-11-13 13:14:01,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:01,413 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 28 [2024-11-13 13:14:01,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:01,709 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 28 [2024-11-13 13:14:02,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:02,047 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 27 [2024-11-13 13:14:02,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:02,073 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 42 treesize of output 47 [2024-11-13 13:14:02,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:02,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 71 [2024-11-13 13:14:02,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:02,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 92 [2024-11-13 13:14:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 207 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-13 13:14:02,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:14:11,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:11,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653814574] [2024-11-13 13:14:11,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653814574] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:11,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:14:11,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 15 [2024-11-13 13:14:11,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76695435] [2024-11-13 13:14:11,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:11,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:14:11,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:11,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:14:11,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=152, Unknown=3, NotChecked=0, Total=210 [2024-11-13 13:14:11,175 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:14:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:20,178 INFO L93 Difference]: Finished difference Result 262 states and 315 transitions. [2024-11-13 13:14:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:14:20,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-13 13:14:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:20,180 INFO L225 Difference]: With dead ends: 262 [2024-11-13 13:14:20,180 INFO L226 Difference]: Without dead ends: 141 [2024-11-13 13:14:20,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=61, Invalid=174, Unknown=5, NotChecked=0, Total=240 [2024-11-13 13:14:20,181 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:20,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 336 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:14:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-13 13:14:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2024-11-13 13:14:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 102 states have internal predecessors, (119), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:14:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2024-11-13 13:14:20,206 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 120 [2024-11-13 13:14:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:20,207 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2024-11-13 13:14:20,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:14:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2024-11-13 13:14:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:14:20,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:20,208 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:20,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-13 13:14:20,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:14:20,409 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:20,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:20,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1264188620, now seen corresponding path program 1 times [2024-11-13 13:14:20,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:20,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509900129] [2024-11-13 13:14:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:20,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:14:20,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:14:20,412 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:14:20,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-13 13:14:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:21,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:14:21,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:26,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:14:26,748 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 310 treesize of output 94 [2024-11-13 13:14:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:14:30,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:14:30,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:30,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509900129] [2024-11-13 13:14:30,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509900129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:30,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:30,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:14:30,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187061103] [2024-11-13 13:14:30,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:30,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:14:30,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:30,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:14:30,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:30,575 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:14:44,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:15:08,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:15:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:08,537 INFO L93 Difference]: Finished difference Result 264 states and 316 transitions. [2024-11-13 13:15:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:15:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 13:15:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:08,547 INFO L225 Difference]: With dead ends: 264 [2024-11-13 13:15:08,547 INFO L226 Difference]: Without dead ends: 143 [2024-11-13 13:15:08,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:15:08,548 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 76 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:08,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 347 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 2 Unknown, 0 Unchecked, 32.2s Time] [2024-11-13 13:15:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-13 13:15:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 128. [2024-11-13 13:15:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.179245283018868) internal successors, (125), 106 states have internal predecessors, (125), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:15:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 153 transitions. [2024-11-13 13:15:08,574 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 153 transitions. Word has length 121 [2024-11-13 13:15:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:08,574 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 153 transitions. [2024-11-13 13:15:08,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:08,574 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 153 transitions. [2024-11-13 13:15:08,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:15:08,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:08,575 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:15:08,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Ended with exit code 0 [2024-11-13 13:15:08,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:08,776 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:08,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash -454841994, now seen corresponding path program 1 times [2024-11-13 13:15:08,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:08,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618223858] [2024-11-13 13:15:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:08,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:08,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:08,779 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:15:08,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-13 13:15:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:09,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 13:15:09,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:09,316 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 [2024-11-13 13:15:09,324 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 [2024-11-13 13:15:09,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:09,353 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 [2024-11-13 13:15:09,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:09,372 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 37 treesize of output 42 [2024-11-13 13:15:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:15:09,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:09,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:09,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618223858] [2024-11-13 13:15:09,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618223858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:09,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:09,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:15:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694004565] [2024-11-13 13:15:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:09,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:15:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:09,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:15:09,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:15:09,685 INFO L87 Difference]: Start difference. First operand 128 states and 153 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:12,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:12,127 INFO L93 Difference]: Finished difference Result 340 states and 406 transitions. [2024-11-13 13:15:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:15:12,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 13:15:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:12,130 INFO L225 Difference]: With dead ends: 340 [2024-11-13 13:15:12,130 INFO L226 Difference]: Without dead ends: 215 [2024-11-13 13:15:12,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:15:12,130 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 78 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:12,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 600 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:15:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-13 13:15:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 137. [2024-11-13 13:15:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 115 states have (on average 1.2) internal successors, (138), 115 states have internal predecessors, (138), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:15:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 166 transitions. [2024-11-13 13:15:12,162 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 166 transitions. Word has length 121 [2024-11-13 13:15:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:12,163 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 166 transitions. [2024-11-13 13:15:12,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 166 transitions. [2024-11-13 13:15:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:15:12,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:12,165 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:15:12,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-13 13:15:12,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:12,366 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:12,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash -584130250, now seen corresponding path program 1 times [2024-11-13 13:15:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50154326] [2024-11-13 13:15:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:12,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:12,369 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:15:12,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-13 13:15:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:12,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:15:12,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:15:12,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:12,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:12,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50154326] [2024-11-13 13:15:12,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50154326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:12,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:12,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:15:12,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212421676] [2024-11-13 13:15:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:12,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:15:12,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:15:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:15:12,849 INFO L87 Difference]: Start difference. First operand 137 states and 166 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:14,097 INFO L93 Difference]: Finished difference Result 288 states and 348 transitions. [2024-11-13 13:15:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:15:14,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 13:15:14,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:14,098 INFO L225 Difference]: With dead ends: 288 [2024-11-13 13:15:14,098 INFO L226 Difference]: Without dead ends: 154 [2024-11-13 13:15:14,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:15:14,099 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 16 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:14,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 321 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:15:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-13 13:15:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 140. [2024-11-13 13:15:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 118 states have (on average 1.194915254237288) internal successors, (141), 118 states have internal predecessors, (141), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:15:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2024-11-13 13:15:14,127 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 121 [2024-11-13 13:15:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:14,127 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2024-11-13 13:15:14,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2024-11-13 13:15:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:15:14,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:14,128 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:15:14,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-13 13:15:14,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:14,329 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:14,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1681965992, now seen corresponding path program 1 times [2024-11-13 13:15:14,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:14,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293764153] [2024-11-13 13:15:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:14,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:14,332 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:15:14,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-13 13:15:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:14,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 13:15:14,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:14,744 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 8 treesize of output 1 [2024-11-13 13:15:14,830 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 25 [2024-11-13 13:15:15,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:15,029 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 28 [2024-11-13 13:15:15,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:15,172 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 36 treesize of output 38 [2024-11-13 13:15:15,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:15,435 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 52 treesize of output 61 [2024-11-13 13:15:20,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:20,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 77 [2024-11-13 13:15:20,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:20,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 90 [2024-11-13 13:15:21,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:21,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 98 [2024-11-13 13:15:22,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:22,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 103 treesize of output 118 [2024-11-13 13:15:26,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:26,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 124 treesize of output 144 [2024-11-13 13:15:26,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:26,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 147 [2024-11-13 13:15:26,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:26,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 156 [2024-11-13 13:15:27,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:27,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 145 treesize of output 57 [2024-11-13 13:15:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-13 13:15:27,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:15:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:15:28,190 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:28,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293764153] [2024-11-13 13:15:28,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293764153] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:15:28,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:15:28,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-13 13:15:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097138855] [2024-11-13 13:15:28,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:28,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:15:28,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:15:28,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=279, Unknown=2, NotChecked=0, Total=380 [2024-11-13 13:15:28,192 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:29,312 INFO L93 Difference]: Finished difference Result 274 states and 326 transitions. [2024-11-13 13:15:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:15:29,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-13 13:15:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:29,314 INFO L225 Difference]: With dead ends: 274 [2024-11-13 13:15:29,314 INFO L226 Difference]: Without dead ends: 137 [2024-11-13 13:15:29,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=104, Invalid=314, Unknown=2, NotChecked=0, Total=420 [2024-11-13 13:15:29,315 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 44 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:29,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 231 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:15:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-13 13:15:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2024-11-13 13:15:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 105 states have internal predecessors, (120), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:15:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2024-11-13 13:15:29,351 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 121 [2024-11-13 13:15:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:29,352 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2024-11-13 13:15:29,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2024-11-13 13:15:29,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:15:29,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:29,355 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:15:29,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-13 13:15:29,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:29,555 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:29,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:29,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1351188305, now seen corresponding path program 1 times [2024-11-13 13:15:29,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:29,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974543402] [2024-11-13 13:15:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:29,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:29,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:29,558 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:15:29,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-13 13:15:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:30,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 13:15:30,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:30,147 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 [2024-11-13 13:15:30,153 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 [2024-11-13 13:15:30,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:30,180 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 44 [2024-11-13 13:15:34,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:34,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 61 [2024-11-13 13:15:34,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:34,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 66 [2024-11-13 13:15:34,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:34,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 84 [2024-11-13 13:15:35,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:35,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 50 [2024-11-13 13:15:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:15:35,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:35,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:35,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974543402] [2024-11-13 13:15:35,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974543402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:35,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:35,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:15:35,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459392206] [2024-11-13 13:15:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:35,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:15:35,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:15:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2024-11-13 13:15:35,446 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:39,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:15:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:41,980 INFO L93 Difference]: Finished difference Result 194 states and 224 transitions. [2024-11-13 13:15:41,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:15:41,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 13:15:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:41,982 INFO L225 Difference]: With dead ends: 194 [2024-11-13 13:15:41,982 INFO L226 Difference]: Without dead ends: 192 [2024-11-13 13:15:41,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2024-11-13 13:15:41,982 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 62 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:41,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 699 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 323 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-13 13:15:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-13 13:15:42,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 132. [2024-11-13 13:15:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.1454545454545455) internal successors, (126), 110 states have internal predecessors, (126), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:15:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2024-11-13 13:15:42,018 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 123 [2024-11-13 13:15:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:42,019 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2024-11-13 13:15:42,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:15:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2024-11-13 13:15:42,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:15:42,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:42,020 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:15:42,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-13 13:15:42,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:42,221 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:15:42,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:42,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1255046434, now seen corresponding path program 1 times [2024-11-13 13:15:42,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:15:42,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077614300] [2024-11-13 13:15:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:42,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:15:42,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:15:42,223 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:15:42,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-13 13:15:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:42,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 13:15:42,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:42,644 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 47 treesize of output 10 [2024-11-13 13:15:42,679 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 [2024-11-13 13:15:42,739 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 [2024-11-13 13:15:42,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:42,896 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 35 treesize of output 37 [2024-11-13 13:15:43,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:43,132 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 50 treesize of output 40 [2024-11-13 13:15:43,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:43,316 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 51 treesize of output 60 [2024-11-13 13:15:47,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:47,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-13 13:15:48,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:48,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-13 13:15:48,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:48,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 99 [2024-11-13 13:15:53,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:53,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 125 [2024-11-13 13:15:53,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:53,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 138 treesize of output 146 [2024-11-13 13:15:54,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:54,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 143 treesize of output 160 [2024-11-13 13:15:54,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:15:54,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 177 treesize of output 77 [2024-11-13 13:15:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 13:15:55,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:55,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:15:55,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077614300] [2024-11-13 13:15:55,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077614300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:55,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:15:55,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:15:55,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030064318] [2024-11-13 13:15:55,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:55,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:15:55,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:15:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:15:55,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=103, Unknown=2, NotChecked=0, Total=182 [2024-11-13 13:15:55,043 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-13 13:16:00,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:16:00,604 INFO L93 Difference]: Finished difference Result 495 states and 581 transitions. [2024-11-13 13:16:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:16:00,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 123 [2024-11-13 13:16:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:16:00,606 INFO L225 Difference]: With dead ends: 495 [2024-11-13 13:16:00,607 INFO L226 Difference]: Without dead ends: 366 [2024-11-13 13:16:00,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=90, Invalid=118, Unknown=2, NotChecked=0, Total=210 [2024-11-13 13:16:00,608 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 385 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:16:00,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 373 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 13:16:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-13 13:16:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 246. [2024-11-13 13:16:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 203 states have (on average 1.1576354679802956) internal successors, (235), 203 states have internal predecessors, (235), 28 states have call successors, (28), 14 states have call predecessors, (28), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:16:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 291 transitions. [2024-11-13 13:16:00,699 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 291 transitions. Word has length 123 [2024-11-13 13:16:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:16:00,699 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 291 transitions. [2024-11-13 13:16:00,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-13 13:16:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 291 transitions. [2024-11-13 13:16:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:16:00,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:00,702 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:00,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:16:00,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:16:00,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:00,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2028803612, now seen corresponding path program 1 times [2024-11-13 13:16:00,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:16:00,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441787367] [2024-11-13 13:16:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:00,903 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 [2024-11-13 13:16:00,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:16:00,905 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:16:00,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-13 13:16:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:16:01,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 13:16:01,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:16:01,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 13:16:01,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 13:16:01,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 13:16:01,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-11-13 13:16:01,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:01,500 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 45 treesize of output 50 [2024-11-13 13:16:01,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:01,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 60 treesize of output 53 [2024-11-13 13:16:02,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:02,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 60 treesize of output 53 [2024-11-13 13:16:02,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:02,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 55 treesize of output 63 [2024-11-13 13:16:02,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:02,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 76 [2024-11-13 13:16:07,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:07,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 70 [2024-11-13 13:16:12,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:12,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 57 [2024-11-13 13:16:16,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:16,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 53 [2024-11-13 13:16:16,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:16,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 73 [2024-11-13 13:16:16,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:16,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 88 [2024-11-13 13:16:16,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:16,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 90 treesize of output 110 [2024-11-13 13:16:17,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:16:17,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 136 treesize of output 60 [2024-11-13 13:16:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 80 proven. 204 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:16:17,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:16:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:16:18,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:16:18,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441787367] [2024-11-13 13:16:18,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441787367] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:16:18,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:16:18,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2024-11-13 13:16:18,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95830926] [2024-11-13 13:16:18,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:16:18,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:16:18,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:16:18,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:16:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=251, Unknown=3, NotChecked=0, Total=306 [2024-11-13 13:16:18,033 INFO L87 Difference]: Start difference. First operand 246 states and 291 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:16:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:16:20,446 INFO L93 Difference]: Finished difference Result 631 states and 740 transitions. [2024-11-13 13:16:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:16:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-13 13:16:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:16:20,449 INFO L225 Difference]: With dead ends: 631 [2024-11-13 13:16:20,450 INFO L226 Difference]: Without dead ends: 388 [2024-11-13 13:16:20,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=68, Invalid=391, Unknown=3, NotChecked=0, Total=462 [2024-11-13 13:16:20,453 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 79 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:16:20,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 750 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:16:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-13 13:16:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 240. [2024-11-13 13:16:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.131979695431472) internal successors, (223), 197 states have internal predecessors, (223), 28 states have call successors, (28), 14 states have call predecessors, (28), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:16:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 279 transitions. [2024-11-13 13:16:20,522 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 279 transitions. Word has length 123 [2024-11-13 13:16:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:16:20,522 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 279 transitions. [2024-11-13 13:16:20,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:16:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 279 transitions. [2024-11-13 13:16:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:16:20,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:20,523 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:20,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-13 13:16:20,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:16:20,723 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:20,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1348745242, now seen corresponding path program 1 times [2024-11-13 13:16:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:16:20,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744053614] [2024-11-13 13:16:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:20,724 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 [2024-11-13 13:16:20,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:16:20,726 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 13:16:20,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69b2238-1c94-434b-aab3-5b4f9261efbb/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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