./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c --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_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/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_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/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_5d8de656-f2a5-4693-9858-b8e021348f91/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 cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:39:37,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:39:38,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:39:38,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:39:38,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:39:38,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:39:38,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:39:38,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:39:38,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:39:38,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:39:38,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:39:38,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:39:38,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:39:38,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:39:38,102 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:39:38,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:39:38,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:39:38,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:39:38,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:39:38,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:39:38,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:39:38,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:39:38,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:39:38,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:39:38,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:39:38,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:39:38,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:39:38,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:39:38,107 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_5d8de656-f2a5-4693-9858-b8e021348f91/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 -> cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff [2024-11-13 14:39:38,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:39:38,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:39:38,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:39:38,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:39:38,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:39:38,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c Unable to find full path for "g++" [2024-11-13 14:39:40,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:39:40,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:39:40,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2024-11-13 14:39:40,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/data/f47ae7b2e/4e82520fe27a497e8d6bbfdae66d8a5f/FLAGda7af8107 [2024-11-13 14:39:40,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/data/f47ae7b2e/4e82520fe27a497e8d6bbfdae66d8a5f [2024-11-13 14:39:40,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:39:40,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:39:40,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:39:40,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:39:40,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:39:40,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:39:40" (1/1) ... [2024-11-13 14:39:40,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb8d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:40, skipping insertion in model container [2024-11-13 14:39:40,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:39:40" (1/1) ... [2024-11-13 14:39:40,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:39:41,554 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_5d8de656-f2a5-4693-9858-b8e021348f91/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2024-11-13 14:39:41,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:39:41,568 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:39:41,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-13 14:39:41,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [62] [2024-11-13 14:39:41,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [730] [2024-11-13 14:39:41,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1092] [2024-11-13 14:39:41,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2539] [2024-11-13 14:39:41,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2905] [2024-11-13 14:39:41,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3065] [2024-11-13 14:39:41,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3184] [2024-11-13 14:39:41,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3275] [2024-11-13 14:39:41,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3310] [2024-11-13 14:39:41,739 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_5d8de656-f2a5-4693-9858-b8e021348f91/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2024-11-13 14:39:41,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:39:41,766 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:39:41,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41 WrapperNode [2024-11-13 14:39:41,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:39:41,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:39:41,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:39:41,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:39:41,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,838 INFO L138 Inliner]: procedures = 89, calls = 327, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 769 [2024-11-13 14:39:41,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:39:41,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:39:41,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:39:41,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:39:41,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,889 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-13 14:39:41,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:39:41,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:39:41,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:39:41,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:39:41,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (1/1) ... [2024-11-13 14:39:41,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:39:42,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:39:42,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:39:42,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:39:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:39:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-13 14:39:42,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-13 14:39:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-13 14:39:42,079 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-13 14:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-13 14:39:42,080 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-13 14:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-13 14:39:42,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-13 14:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-13 14:39:42,080 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-13 14:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-13 14:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-13 14:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-13 14:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-13 14:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-13 14:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-13 14:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-13 14:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-13 14:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-13 14:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-13 14:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-13 14:39:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-13 14:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-13 14:39:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-13 14:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-13 14:39:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-13 14:39:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:39:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:39:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-13 14:39:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-13 14:39:42,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:39:42,323 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:39:43,827 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-13 14:39:43,828 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:39:43,864 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:39:43,865 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:39:43,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:39:43 BoogieIcfgContainer [2024-11-13 14:39:43,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:39:43,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:39:43,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:39:43,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:39:43,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:39:40" (1/3) ... [2024-11-13 14:39:43,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c138a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:39:43, skipping insertion in model container [2024-11-13 14:39:43,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:39:41" (2/3) ... [2024-11-13 14:39:43,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c138a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:39:43, skipping insertion in model container [2024-11-13 14:39:43,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:39:43" (3/3) ... [2024-11-13 14:39:43,880 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2024-11-13 14:39:43,891 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:39:43,894 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product09.cil.c that has 21 procedures, 517 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:39:43,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:39:44,013 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;@45584b08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:39:44,014 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:39:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-13 14:39:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 14:39:44,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:44,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:39:44,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:44,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:44,048 INFO L85 PathProgramCache]: Analyzing trace with hash 109673661, now seen corresponding path program 1 times [2024-11-13 14:39:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:39:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114750041] [2024-11-13 14:39:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:39:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:44,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:39:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:44,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:39:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:39:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:39:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-13 14:39:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:39:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:39:45,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:39:45,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114750041] [2024-11-13 14:39:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114750041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:39:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:39:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:39:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073811284] [2024-11-13 14:39:45,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:39:45,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:39:45,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:39:45,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:39:45,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:39:45,992 INFO L87 Difference]: Start difference. First operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:39:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:39:55,239 INFO L93 Difference]: Finished difference Result 1261 states and 2183 transitions. [2024-11-13 14:39:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:39:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-13 14:39:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:39:55,265 INFO L225 Difference]: With dead ends: 1261 [2024-11-13 14:39:55,265 INFO L226 Difference]: Without dead ends: 756 [2024-11-13 14:39:55,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:39:55,280 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 1763 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:39:55,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 2894 Invalid, 5399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [442 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-13 14:39:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-13 14:39:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 513. [2024-11-13 14:39:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 409 states have (on average 1.7114914425427872) internal successors, (700), 428 states have internal predecessors, (700), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2024-11-13 14:39:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 863 transitions. [2024-11-13 14:39:55,549 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 863 transitions. Word has length 76 [2024-11-13 14:39:55,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:39:55,549 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 863 transitions. [2024-11-13 14:39:55,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:39:55,550 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 863 transitions. [2024-11-13 14:39:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 14:39:55,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:55,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:39:55,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:39:55,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:55,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1570456893, now seen corresponding path program 1 times [2024-11-13 14:39:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:39:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961907683] [2024-11-13 14:39:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:39:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:39:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:55,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:55,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:39:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:39:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:39:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:39:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:39:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:39:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:39:56,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:39:56,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961907683] [2024-11-13 14:39:56,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961907683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:39:56,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:39:56,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:39:56,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424442926] [2024-11-13 14:39:56,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:39:56,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:39:56,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:39:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:39:56,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:39:56,726 INFO L87 Difference]: Start difference. First operand 513 states and 863 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:40:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:10,875 INFO L93 Difference]: Finished difference Result 1795 states and 3171 transitions. [2024-11-13 14:40:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:40:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-13 14:40:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:10,891 INFO L225 Difference]: With dead ends: 1795 [2024-11-13 14:40:10,891 INFO L226 Difference]: Without dead ends: 1300 [2024-11-13 14:40:10,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:40:10,897 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 2244 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 6626 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 7255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 6626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:10,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 3403 Invalid, 7255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [629 Valid, 6626 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-13 14:40:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-13 14:40:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 918. [2024-11-13 14:40:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 728 states have (on average 1.6813186813186813) internal successors, (1224), 761 states have internal predecessors, (1224), 151 states have call successors, (151), 37 states have call predecessors, (151), 38 states have return successors, (157), 143 states have call predecessors, (157), 146 states have call successors, (157) [2024-11-13 14:40:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1532 transitions. [2024-11-13 14:40:11,177 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1532 transitions. Word has length 83 [2024-11-13 14:40:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:11,177 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1532 transitions. [2024-11-13 14:40:11,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:40:11,178 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1532 transitions. [2024-11-13 14:40:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 14:40:11,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:11,182 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:11,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:40:11,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:11,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:11,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1276381504, now seen corresponding path program 1 times [2024-11-13 14:40:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698245404] [2024-11-13 14:40:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:11,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:11,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:11,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:40:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:11,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:40:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:11,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:40:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 14:40:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:40:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:40:12,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:12,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698245404] [2024-11-13 14:40:12,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698245404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:12,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:12,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 14:40:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657845754] [2024-11-13 14:40:12,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:12,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:40:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:40:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:40:12,184 INFO L87 Difference]: Start difference. First operand 918 states and 1532 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-13 14:40:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:20,597 INFO L93 Difference]: Finished difference Result 2311 states and 3988 transitions. [2024-11-13 14:40:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:40:20,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-11-13 14:40:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:20,611 INFO L225 Difference]: With dead ends: 2311 [2024-11-13 14:40:20,611 INFO L226 Difference]: Without dead ends: 1294 [2024-11-13 14:40:20,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:40:20,617 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1873 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 4994 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 5390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 4994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:20,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 2897 Invalid, 5390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [396 Valid, 4994 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-13 14:40:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-13 14:40:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 920. [2024-11-13 14:40:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 729 states have (on average 1.6598079561042525) internal successors, (1210), 763 states have internal predecessors, (1210), 151 states have call successors, (151), 37 states have call predecessors, (151), 39 states have return successors, (159), 143 states have call predecessors, (159), 146 states have call successors, (159) [2024-11-13 14:40:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1520 transitions. [2024-11-13 14:40:20,880 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1520 transitions. Word has length 95 [2024-11-13 14:40:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:20,881 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1520 transitions. [2024-11-13 14:40:20,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-13 14:40:20,881 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1520 transitions. [2024-11-13 14:40:20,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 14:40:20,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:20,884 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:20,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:40:20,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:20,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:20,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1570751817, now seen corresponding path program 1 times [2024-11-13 14:40:20,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:20,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477530154] [2024-11-13 14:40:20,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:20,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:40:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:40:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:40:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:40:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:40:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:40:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:40:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:21,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477530154] [2024-11-13 14:40:21,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477530154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:21,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:21,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:40:21,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183897257] [2024-11-13 14:40:21,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:21,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:40:21,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:40:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:40:21,727 INFO L87 Difference]: Start difference. First operand 920 states and 1520 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:40:28,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:28,008 INFO L93 Difference]: Finished difference Result 2184 states and 3704 transitions. [2024-11-13 14:40:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:40:28,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2024-11-13 14:40:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:28,019 INFO L225 Difference]: With dead ends: 2184 [2024-11-13 14:40:28,019 INFO L226 Difference]: Without dead ends: 1282 [2024-11-13 14:40:28,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:40:28,024 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 909 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2843 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:28,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1705 Invalid, 3029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [186 Valid, 2843 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 14:40:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-13 14:40:28,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 920. [2024-11-13 14:40:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 729 states have (on average 1.6584362139917694) internal successors, (1209), 763 states have internal predecessors, (1209), 151 states have call successors, (151), 37 states have call predecessors, (151), 39 states have return successors, (159), 143 states have call predecessors, (159), 146 states have call successors, (159) [2024-11-13 14:40:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1519 transitions. [2024-11-13 14:40:28,287 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1519 transitions. Word has length 98 [2024-11-13 14:40:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:28,287 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1519 transitions. [2024-11-13 14:40:28,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:40:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1519 transitions. [2024-11-13 14:40:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 14:40:28,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:28,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:28,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:40:28,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:28,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1996052153, now seen corresponding path program 1 times [2024-11-13 14:40:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017340423] [2024-11-13 14:40:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:40:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 14:40:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:40:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:40:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:40:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:40:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:40:28,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:28,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017340423] [2024-11-13 14:40:28,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017340423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:28,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:28,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:40:28,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523374903] [2024-11-13 14:40:28,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:28,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:40:28,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:28,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:40:28,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:40:28,998 INFO L87 Difference]: Start difference. First operand 920 states and 1519 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:40:34,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:34,634 INFO L93 Difference]: Finished difference Result 2184 states and 3703 transitions. [2024-11-13 14:40:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:40:34,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-13 14:40:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:34,644 INFO L225 Difference]: With dead ends: 2184 [2024-11-13 14:40:34,644 INFO L226 Difference]: Without dead ends: 1282 [2024-11-13 14:40:34,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:40:34,649 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1710 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:34,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1586 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 14:40:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-13 14:40:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 920. [2024-11-13 14:40:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 729 states have (on average 1.6570644718792866) internal successors, (1208), 763 states have internal predecessors, (1208), 151 states have call successors, (151), 37 states have call predecessors, (151), 39 states have return successors, (159), 143 states have call predecessors, (159), 146 states have call successors, (159) [2024-11-13 14:40:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1518 transitions. [2024-11-13 14:40:34,937 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1518 transitions. Word has length 99 [2024-11-13 14:40:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:34,938 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1518 transitions. [2024-11-13 14:40:34,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:40:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1518 transitions. [2024-11-13 14:40:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 14:40:34,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:34,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:34,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:40:34,948 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:34,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1751886861, now seen corresponding path program 1 times [2024-11-13 14:40:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788710772] [2024-11-13 14:40:34,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:34,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:40:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:40:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:40:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:40:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:40:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:40:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:40:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788710772] [2024-11-13 14:40:35,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788710772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:35,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:35,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:40:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173536791] [2024-11-13 14:40:35,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:35,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:40:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:35,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:40:35,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:40:35,863 INFO L87 Difference]: Start difference. First operand 920 states and 1518 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:40:44,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:44,948 INFO L93 Difference]: Finished difference Result 2218 states and 3786 transitions. [2024-11-13 14:40:44,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:40:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2024-11-13 14:40:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:44,959 INFO L225 Difference]: With dead ends: 2218 [2024-11-13 14:40:44,960 INFO L226 Difference]: Without dead ends: 1356 [2024-11-13 14:40:44,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:40:44,964 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1893 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 6385 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 4024 SdHoareTripleChecker+Invalid, 6870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 6385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:44,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 4024 Invalid, 6870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [485 Valid, 6385 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-13 14:40:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-11-13 14:40:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 932. [2024-11-13 14:40:45,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 735 states have (on average 1.6448979591836734) internal successors, (1209), 773 states have internal predecessors, (1209), 153 states have call successors, (153), 37 states have call predecessors, (153), 43 states have return successors, (171), 145 states have call predecessors, (171), 148 states have call successors, (171) [2024-11-13 14:40:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1533 transitions. [2024-11-13 14:40:45,276 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1533 transitions. Word has length 100 [2024-11-13 14:40:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:45,277 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1533 transitions. [2024-11-13 14:40:45,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:40:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1533 transitions. [2024-11-13 14:40:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:40:45,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:45,282 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:45,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:40:45,282 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:45,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash 414579967, now seen corresponding path program 1 times [2024-11-13 14:40:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:45,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747159086] [2024-11-13 14:40:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:45,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:45,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:45,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:40:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:40:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:40:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:40:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:40:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:40:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:40:46,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:46,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747159086] [2024-11-13 14:40:46,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747159086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:46,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:46,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:40:46,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324281023] [2024-11-13 14:40:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:46,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:40:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:40:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:40:46,142 INFO L87 Difference]: Start difference. First operand 932 states and 1533 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:40:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:55,749 INFO L93 Difference]: Finished difference Result 2207 states and 3734 transitions. [2024-11-13 14:40:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:40:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2024-11-13 14:40:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:55,756 INFO L225 Difference]: With dead ends: 2207 [2024-11-13 14:40:55,756 INFO L226 Difference]: Without dead ends: 1342 [2024-11-13 14:40:55,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:40:55,761 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1483 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 6340 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 6667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 6340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:55,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 3740 Invalid, 6667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [327 Valid, 6340 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-13 14:40:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-13 14:40:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 945. [2024-11-13 14:40:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 745 states have (on average 1.6429530201342282) internal successors, (1224), 785 states have internal predecessors, (1224), 154 states have call successors, (154), 37 states have call predecessors, (154), 45 states have return successors, (174), 146 states have call predecessors, (174), 149 states have call successors, (174) [2024-11-13 14:40:56,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1552 transitions. [2024-11-13 14:40:56,083 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1552 transitions. Word has length 101 [2024-11-13 14:40:56,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:56,085 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1552 transitions. [2024-11-13 14:40:56,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:40:56,085 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1552 transitions. [2024-11-13 14:40:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:40:56,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:56,091 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:56,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:40:56,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:56,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1622498142, now seen corresponding path program 1 times [2024-11-13 14:40:56,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:56,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929281547] [2024-11-13 14:40:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:40:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:40:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:40:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:40:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:40:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:40:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:40:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:40:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:40:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:40:56,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:56,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929281547] [2024-11-13 14:40:56,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929281547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:56,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:56,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:40:56,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520160501] [2024-11-13 14:40:56,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:56,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:40:56,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:56,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:40:56,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:40:56,780 INFO L87 Difference]: Start difference. First operand 945 states and 1552 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:02,633 INFO L93 Difference]: Finished difference Result 2215 states and 3744 transitions. [2024-11-13 14:41:02,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:41:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-13 14:41:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:02,644 INFO L225 Difference]: With dead ends: 2215 [2024-11-13 14:41:02,644 INFO L226 Difference]: Without dead ends: 1332 [2024-11-13 14:41:02,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:41:02,648 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 975 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:02,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1683 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2762 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 14:41:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-13 14:41:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 945. [2024-11-13 14:41:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 745 states have (on average 1.6362416107382551) internal successors, (1219), 785 states have internal predecessors, (1219), 154 states have call successors, (154), 37 states have call predecessors, (154), 45 states have return successors, (174), 146 states have call predecessors, (174), 149 states have call successors, (174) [2024-11-13 14:41:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1547 transitions. [2024-11-13 14:41:02,947 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1547 transitions. Word has length 101 [2024-11-13 14:41:02,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:02,947 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1547 transitions. [2024-11-13 14:41:02,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1547 transitions. [2024-11-13 14:41:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 14:41:02,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:02,952 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:02,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:41:02,952 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1823532426, now seen corresponding path program 1 times [2024-11-13 14:41:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:02,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194492445] [2024-11-13 14:41:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 14:41:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:03,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194492445] [2024-11-13 14:41:03,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194492445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:03,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:03,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:41:03,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686229553] [2024-11-13 14:41:03,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:03,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:41:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:41:03,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:03,619 INFO L87 Difference]: Start difference. First operand 945 states and 1547 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:09,081 INFO L93 Difference]: Finished difference Result 2215 states and 3739 transitions. [2024-11-13 14:41:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:41:09,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-11-13 14:41:09,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:09,091 INFO L225 Difference]: With dead ends: 2215 [2024-11-13 14:41:09,091 INFO L226 Difference]: Without dead ends: 1332 [2024-11-13 14:41:09,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:41:09,095 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1384 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:09,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1628 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 14:41:09,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-13 14:41:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 945. [2024-11-13 14:41:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 745 states have (on average 1.6295302013422819) internal successors, (1214), 785 states have internal predecessors, (1214), 154 states have call successors, (154), 37 states have call predecessors, (154), 45 states have return successors, (174), 146 states have call predecessors, (174), 149 states have call successors, (174) [2024-11-13 14:41:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1542 transitions. [2024-11-13 14:41:09,449 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1542 transitions. Word has length 102 [2024-11-13 14:41:09,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:09,452 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1542 transitions. [2024-11-13 14:41:09,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1542 transitions. [2024-11-13 14:41:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:41:09,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:09,456 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:09,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:41:09,456 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:09,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash 714769337, now seen corresponding path program 1 times [2024-11-13 14:41:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:09,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694617018] [2024-11-13 14:41:09,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:09,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:09,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:41:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694617018] [2024-11-13 14:41:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694617018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:41:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734816734] [2024-11-13 14:41:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:41:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:41:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:10,154 INFO L87 Difference]: Start difference. First operand 945 states and 1542 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:15,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:15,601 INFO L93 Difference]: Finished difference Result 2215 states and 3734 transitions. [2024-11-13 14:41:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:41:15,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-13 14:41:15,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:15,608 INFO L225 Difference]: With dead ends: 2215 [2024-11-13 14:41:15,608 INFO L226 Difference]: Without dead ends: 1332 [2024-11-13 14:41:15,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:41:15,613 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 1384 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:15,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1634 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 14:41:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-13 14:41:15,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 945. [2024-11-13 14:41:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 745 states have (on average 1.6228187919463086) internal successors, (1209), 785 states have internal predecessors, (1209), 154 states have call successors, (154), 37 states have call predecessors, (154), 45 states have return successors, (174), 146 states have call predecessors, (174), 149 states have call successors, (174) [2024-11-13 14:41:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1537 transitions. [2024-11-13 14:41:15,923 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1537 transitions. Word has length 103 [2024-11-13 14:41:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:15,924 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1537 transitions. [2024-11-13 14:41:15,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1537 transitions. [2024-11-13 14:41:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:41:15,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:15,927 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:15,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:41:15,927 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:15,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:15,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1253568824, now seen corresponding path program 1 times [2024-11-13 14:41:15,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:15,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262527761] [2024-11-13 14:41:15,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:15,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:41:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:16,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:16,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262527761] [2024-11-13 14:41:16,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262527761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:16,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:16,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:41:16,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632590595] [2024-11-13 14:41:16,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:16,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:41:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:16,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:41:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:16,619 INFO L87 Difference]: Start difference. First operand 945 states and 1537 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:22,712 INFO L93 Difference]: Finished difference Result 2239 states and 3758 transitions. [2024-11-13 14:41:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:41:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-13 14:41:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:22,721 INFO L225 Difference]: With dead ends: 2239 [2024-11-13 14:41:22,722 INFO L226 Difference]: Without dead ends: 1271 [2024-11-13 14:41:22,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:41:22,725 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 889 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:22,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 1688 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 14:41:22,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-13 14:41:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 905. [2024-11-13 14:41:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 708 states have (on average 1.6285310734463276) internal successors, (1153), 746 states have internal predecessors, (1153), 153 states have call successors, (153), 37 states have call predecessors, (153), 43 states have return successors, (171), 145 states have call predecessors, (171), 148 states have call successors, (171) [2024-11-13 14:41:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1477 transitions. [2024-11-13 14:41:22,963 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1477 transitions. Word has length 103 [2024-11-13 14:41:22,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:22,964 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1477 transitions. [2024-11-13 14:41:22,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1477 transitions. [2024-11-13 14:41:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:41:22,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:22,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:22,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:41:22,966 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:22,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1567238036, now seen corresponding path program 1 times [2024-11-13 14:41:22,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:22,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951857553] [2024-11-13 14:41:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:22,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:41:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:23,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:23,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951857553] [2024-11-13 14:41:23,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951857553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:23,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:23,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:41:23,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239314133] [2024-11-13 14:41:23,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:23,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:41:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:23,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:41:23,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:23,634 INFO L87 Difference]: Start difference. First operand 905 states and 1477 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:29,468 INFO L93 Difference]: Finished difference Result 2139 states and 3611 transitions. [2024-11-13 14:41:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:41:29,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-13 14:41:29,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:29,476 INFO L225 Difference]: With dead ends: 2139 [2024-11-13 14:41:29,476 INFO L226 Difference]: Without dead ends: 1271 [2024-11-13 14:41:29,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:41:29,479 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 849 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:29,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1700 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 14:41:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-13 14:41:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 905. [2024-11-13 14:41:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 708 states have (on average 1.6271186440677967) internal successors, (1152), 746 states have internal predecessors, (1152), 153 states have call successors, (153), 37 states have call predecessors, (153), 43 states have return successors, (171), 145 states have call predecessors, (171), 148 states have call successors, (171) [2024-11-13 14:41:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1476 transitions. [2024-11-13 14:41:29,755 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1476 transitions. Word has length 105 [2024-11-13 14:41:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1476 transitions. [2024-11-13 14:41:29,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1476 transitions. [2024-11-13 14:41:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:41:29,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:29,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:29,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:41:29,758 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:29,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1721483788, now seen corresponding path program 1 times [2024-11-13 14:41:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:29,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919955548] [2024-11-13 14:41:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:29,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:41:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:30,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:30,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919955548] [2024-11-13 14:41:30,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919955548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:30,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:41:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661256307] [2024-11-13 14:41:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:30,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:41:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:30,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:41:30,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:30,433 INFO L87 Difference]: Start difference. First operand 905 states and 1476 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:35,610 INFO L93 Difference]: Finished difference Result 2145 states and 3619 transitions. [2024-11-13 14:41:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:41:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-13 14:41:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:35,620 INFO L225 Difference]: With dead ends: 2145 [2024-11-13 14:41:35,621 INFO L226 Difference]: Without dead ends: 1271 [2024-11-13 14:41:35,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:41:35,625 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1233 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 2414 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:35,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1639 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2414 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:41:35,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-13 14:41:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 905. [2024-11-13 14:41:36,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 708 states have (on average 1.6257062146892656) internal successors, (1151), 746 states have internal predecessors, (1151), 153 states have call successors, (153), 37 states have call predecessors, (153), 43 states have return successors, (171), 145 states have call predecessors, (171), 148 states have call successors, (171) [2024-11-13 14:41:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1475 transitions. [2024-11-13 14:41:36,006 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1475 transitions. Word has length 106 [2024-11-13 14:41:36,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:36,007 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1475 transitions. [2024-11-13 14:41:36,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1475 transitions. [2024-11-13 14:41:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:41:36,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:36,010 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:36,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:41:36,010 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:36,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:36,011 INFO L85 PathProgramCache]: Analyzing trace with hash 201493823, now seen corresponding path program 1 times [2024-11-13 14:41:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168004258] [2024-11-13 14:41:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:36,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:41:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:36,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:36,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168004258] [2024-11-13 14:41:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168004258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:41:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316140162] [2024-11-13 14:41:36,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:36,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:41:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:41:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:41:36,800 INFO L87 Difference]: Start difference. First operand 905 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:48,134 INFO L93 Difference]: Finished difference Result 3296 states and 5714 transitions. [2024-11-13 14:41:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 14:41:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-11-13 14:41:48,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:48,148 INFO L225 Difference]: With dead ends: 3296 [2024-11-13 14:41:48,148 INFO L226 Difference]: Without dead ends: 2436 [2024-11-13 14:41:48,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:41:48,153 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 3772 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 1137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1137 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:48,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3836 Valid, 2191 Invalid, 4918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1137 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-13 14:41:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2024-11-13 14:41:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 1751. [2024-11-13 14:41:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1376 states have (on average 1.6337209302325582) internal successors, (2248), 1443 states have internal predecessors, (2248), 288 states have call successors, (288), 67 states have call predecessors, (288), 86 states have return successors, (349), 288 states have call predecessors, (349), 283 states have call successors, (349) [2024-11-13 14:41:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2885 transitions. [2024-11-13 14:41:48,760 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2885 transitions. Word has length 107 [2024-11-13 14:41:48,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:48,761 INFO L471 AbstractCegarLoop]: Abstraction has 1751 states and 2885 transitions. [2024-11-13 14:41:48,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:48,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2885 transitions. [2024-11-13 14:41:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:41:48,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:48,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:48,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:41:48,765 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:48,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:48,765 INFO L85 PathProgramCache]: Analyzing trace with hash 645981340, now seen corresponding path program 1 times [2024-11-13 14:41:48,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:48,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102615913] [2024-11-13 14:41:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:48,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:41:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:41:49,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:49,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102615913] [2024-11-13 14:41:49,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102615913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:41:49,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548719552] [2024-11-13 14:41:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:49,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:41:49,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:41:49,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:41:49,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:41:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:49,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:41:49,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:41:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:50,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:41:50,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548719552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:50,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:41:50,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-13 14:41:50,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37510287] [2024-11-13 14:41:50,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:50,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:50,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:50,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:41:50,238 INFO L87 Difference]: Start difference. First operand 1751 states and 2885 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:54,303 INFO L93 Difference]: Finished difference Result 6020 states and 10279 transitions. [2024-11-13 14:41:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:41:54,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-13 14:41:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:54,336 INFO L225 Difference]: With dead ends: 6020 [2024-11-13 14:41:54,336 INFO L226 Difference]: Without dead ends: 4314 [2024-11-13 14:41:54,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:41:54,348 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 2021 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:54,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 1783 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 14:41:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4314 states. [2024-11-13 14:41:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4314 to 3752. [2024-11-13 14:41:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2893 states have (on average 1.6287590736259938) internal successors, (4712), 3048 states have internal predecessors, (4712), 678 states have call successors, (678), 129 states have call predecessors, (678), 180 states have return successors, (902), 690 states have call predecessors, (902), 673 states have call successors, (902) [2024-11-13 14:41:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 6292 transitions. [2024-11-13 14:41:55,676 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 6292 transitions. Word has length 109 [2024-11-13 14:41:55,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 3752 states and 6292 transitions. [2024-11-13 14:41:55,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:41:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 6292 transitions. [2024-11-13 14:41:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:41:55,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:55,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:55,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:41:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:41:55,882 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:55,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 646614711, now seen corresponding path program 1 times [2024-11-13 14:41:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288990865] [2024-11-13 14:41:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:41:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:41:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:41:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:41:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:41:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:41:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:41:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:41:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:41:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:41:56,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288990865] [2024-11-13 14:41:56,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288990865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:41:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334226687] [2024-11-13 14:41:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:41:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:41:56,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:41:56,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:41:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:57,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:41:57,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:41:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:41:57,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:41:57,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334226687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:57,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:41:57,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-13 14:41:57,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892493445] [2024-11-13 14:41:57,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:57,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:57,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:57,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:57,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:41:57,347 INFO L87 Difference]: Start difference. First operand 3752 states and 6292 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:42:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:42:03,260 INFO L93 Difference]: Finished difference Result 13408 states and 23544 transitions. [2024-11-13 14:42:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:42:03,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-13 14:42:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:42:03,333 INFO L225 Difference]: With dead ends: 13408 [2024-11-13 14:42:03,334 INFO L226 Difference]: Without dead ends: 9701 [2024-11-13 14:42:03,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:42:03,356 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 3039 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:42:03,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 1401 Invalid, 2939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:42:03,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9701 states. [2024-11-13 14:42:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9701 to 8290. [2024-11-13 14:42:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8290 states, 6255 states have (on average 1.61982414068745) internal successors, (10132), 6618 states have internal predecessors, (10132), 1654 states have call successors, (1654), 253 states have call predecessors, (1654), 380 states have return successors, (2372), 1706 states have call predecessors, (2372), 1649 states have call successors, (2372) [2024-11-13 14:42:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 14158 transitions. [2024-11-13 14:42:06,022 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 14158 transitions. Word has length 110 [2024-11-13 14:42:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:42:06,023 INFO L471 AbstractCegarLoop]: Abstraction has 8290 states and 14158 transitions. [2024-11-13 14:42:06,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:42:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 14158 transitions. [2024-11-13 14:42:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:42:06,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:42:06,032 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:42:06,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:42:06,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 14:42:06,233 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:42:06,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:42:06,233 INFO L85 PathProgramCache]: Analyzing trace with hash -969047688, now seen corresponding path program 1 times [2024-11-13 14:42:06,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:42:06,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544749406] [2024-11-13 14:42:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:42:06,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:42:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:06,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:42:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:06,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:06,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:42:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:06,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:42:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:42:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:42:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:42:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:42:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:42:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:42:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:42:07,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544749406] [2024-11-13 14:42:07,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544749406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:42:07,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122364205] [2024-11-13 14:42:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:42:07,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:42:07,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:42:07,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:42:07,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:42:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:07,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:42:07,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:42:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:42:07,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:42:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122364205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:42:07,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:42:07,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-13 14:42:07,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602079874] [2024-11-13 14:42:07,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:42:07,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:42:07,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:42:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:42:07,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:42:07,699 INFO L87 Difference]: Start difference. First operand 8290 states and 14158 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:42:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:42:18,612 INFO L93 Difference]: Finished difference Result 30784 states and 55962 transitions. [2024-11-13 14:42:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:42:18,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-13 14:42:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:42:18,997 INFO L225 Difference]: With dead ends: 30784 [2024-11-13 14:42:18,997 INFO L226 Difference]: Without dead ends: 22539 [2024-11-13 14:42:19,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:42:19,078 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 3039 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:42:19,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 1401 Invalid, 2939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:42:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22539 states. [2024-11-13 14:42:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22539 to 18902. [2024-11-13 14:42:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18902 states, 13935 states have (on average 1.6088984571223537) internal successors, (22420), 14798 states have internal predecessors, (22420), 4154 states have call successors, (4154), 501 states have call predecessors, (4154), 812 states have return successors, (6508), 4334 states have call predecessors, (6508), 4149 states have call successors, (6508) [2024-11-13 14:42:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18902 states to 18902 states and 33082 transitions. [2024-11-13 14:42:26,758 INFO L78 Accepts]: Start accepts. Automaton has 18902 states and 33082 transitions. Word has length 111 [2024-11-13 14:42:26,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:42:26,759 INFO L471 AbstractCegarLoop]: Abstraction has 18902 states and 33082 transitions. [2024-11-13 14:42:26,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:42:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18902 states and 33082 transitions. [2024-11-13 14:42:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:42:26,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:42:26,763 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:42:26,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:42:26,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:42:26,964 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:42:26,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:42:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1150271405, now seen corresponding path program 1 times [2024-11-13 14:42:26,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:42:26,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598079073] [2024-11-13 14:42:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:42:26,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:42:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:27,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:42:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:27,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:27,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:42:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:27,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:42:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:27,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:42:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:42:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:42:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:42:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:42:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:42:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:42:28,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:42:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598079073] [2024-11-13 14:42:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598079073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:42:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85050528] [2024-11-13 14:42:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:42:28,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:42:28,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:42:28,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:42:28,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8de656-f2a5-4693-9858-b8e021348f91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:42:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:42:28,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:42:28,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:42:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:42:28,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:42:28,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85050528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:42:28,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:42:28,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-13 14:42:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326960189] [2024-11-13 14:42:28,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:42:28,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:42:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:42:28,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:42:28,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:42:28,688 INFO L87 Difference]: Start difference. First operand 18902 states and 33082 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:42:52,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:42:52,584 INFO L93 Difference]: Finished difference Result 72992 states and 139906 transitions. [2024-11-13 14:42:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:42:52,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-13 14:42:52,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:42:53,302 INFO L225 Difference]: With dead ends: 72992 [2024-11-13 14:42:53,302 INFO L226 Difference]: Without dead ends: 54135 [2024-11-13 14:42:53,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:42:53,575 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 2037 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:42:53,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 1727 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 14:42:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54135 states.