./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1 --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 6cc96375562d846fbf28439914184b0f5b3d70ee1197dff8e1988bf2754bc90e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:41:21,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:41:21,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:41:21,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:41:21,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:41:21,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:41:21,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:41:21,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:41:21,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:41:21,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:41:21,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:41:21,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:41:21,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:41:21,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:41:21,927 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:41:21,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:41:21,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:41:21,929 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:21,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:21,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:41:21,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:41:21,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:41:21,930 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_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6cc96375562d846fbf28439914184b0f5b3d70ee1197dff8e1988bf2754bc90e [2024-12-02 13:41:22,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:41:22,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:41:22,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:41:22,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:41:22,166 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:41:22,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2024-12-02 13:41:24,837 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/data/f9fead348/acd52edab8bf42ad97997eaae1211bfe/FLAG9a6ea2c86 [2024-12-02 13:41:25,099 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:41:25,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2024-12-02 13:41:25,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/data/f9fead348/acd52edab8bf42ad97997eaae1211bfe/FLAG9a6ea2c86 [2024-12-02 13:41:25,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/data/f9fead348/acd52edab8bf42ad97997eaae1211bfe [2024-12-02 13:41:25,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:41:25,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:41:25,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:25,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:41:25,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:41:25,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ce7898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25, skipping insertion in model container [2024-12-02 13:41:25,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:41:25,289 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_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2024-12-02 13:41:25,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:25,561 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:41:25,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-12-02 13:41:25,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [57] [2024-12-02 13:41:25,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1620] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1975] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2066] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2432] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2467] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [2481] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2517] [2024-12-02 13:41:25,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2635] [2024-12-02 13:41:25,572 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_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2024-12-02 13:41:25,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:25,687 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:41:25,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25 WrapperNode [2024-12-02 13:41:25,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:25,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:25,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:41:25,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:41:25,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,753 INFO L138 Inliner]: procedures = 92, calls = 335, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 1093 [2024-12-02 13:41:25,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:25,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:41:25,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:41:25,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:41:25,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,793 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]. [2024-12-02 13:41:25,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,811 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:41:25,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:41:25,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:41:25,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:41:25,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (1/1) ... [2024-12-02 13:41:25,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:25,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:25,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:41:25,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:41:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:41:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 13:41:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 13:41:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 13:41:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 13:41:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 13:41:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 13:41:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-12-02 13:41:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 13:41:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 13:41:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 13:41:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:41:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 13:41:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 13:41:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 13:41:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 13:41:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 13:41:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 13:41:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 13:41:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:41:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:41:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 13:41:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 13:41:26,068 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:41:26,070 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:41:27,124 INFO L? ?]: Removed 452 outVars from TransFormulas that were not future-live. [2024-12-02 13:41:27,125 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:41:27,145 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:41:27,145 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:41:27,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:27 BoogieIcfgContainer [2024-12-02 13:41:27,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:41:27,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:41:27,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:41:27,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:41:27,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:41:25" (1/3) ... [2024-12-02 13:41:27,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6047f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:27, skipping insertion in model container [2024-12-02 13:41:27,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:25" (2/3) ... [2024-12-02 13:41:27,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6047f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:27, skipping insertion in model container [2024-12-02 13:41:27,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:27" (3/3) ... [2024-12-02 13:41:27,156 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product27.cil.c [2024-12-02 13:41:27,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:41:27,176 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product27.cil.c that has 24 procedures, 540 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:41:27,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:41:27,245 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;@46527ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:41:27,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:41:27,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 422 states have (on average 1.680094786729858) internal successors, (709), 438 states have internal predecessors, (709), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:41:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 13:41:27,271 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:27,271 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:27,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:27,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash -997650908, now seen corresponding path program 1 times [2024-12-02 13:41:27,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:27,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36204414] [2024-12-02 13:41:27,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:27,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:27,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:27,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36204414] [2024-12-02 13:41:27,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36204414] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:27,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:27,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:27,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371287665] [2024-12-02 13:41:27,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:27,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:27,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:27,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:27,742 INFO L87 Difference]: Start difference. First operand has 540 states, 422 states have (on average 1.680094786729858) internal successors, (709), 438 states have internal predecessors, (709), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:27,912 INFO L93 Difference]: Finished difference Result 1073 states and 1790 transitions. [2024-12-02 13:41:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:27,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 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 [2024-12-02 13:41:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:27,926 INFO L225 Difference]: With dead ends: 1073 [2024-12-02 13:41:27,926 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:41:27,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:41:27,936 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 6 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:27,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2628 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:41:27,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:41:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 418 states have (on average 1.6698564593301435) internal successors, (698), 433 states have internal predecessors, (698), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 883 transitions. [2024-12-02 13:41:28,010 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 883 transitions. Word has length 101 [2024-12-02 13:41:28,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:28,011 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 883 transitions. [2024-12-02 13:41:28,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,011 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 883 transitions. [2024-12-02 13:41:28,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 13:41:28,017 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:28,017 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:28,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:41:28,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:28,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:28,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1240815695, now seen corresponding path program 1 times [2024-12-02 13:41:28,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:28,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413506441] [2024-12-02 13:41:28,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:28,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:28,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:28,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413506441] [2024-12-02 13:41:28,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413506441] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:28,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:28,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:28,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717135267] [2024-12-02 13:41:28,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:28,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:28,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:28,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:28,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,203 INFO L87 Difference]: Start difference. First operand 535 states and 883 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:28,289 INFO L93 Difference]: Finished difference Result 1053 states and 1743 transitions. [2024-12-02 13:41:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:41:28,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 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 [2024-12-02 13:41:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:28,294 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 13:41:28,294 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:41:28,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,298 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 4 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:28,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2600 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:41:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:41:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 418 states have (on average 1.667464114832536) internal successors, (697), 433 states have internal predecessors, (697), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 882 transitions. [2024-12-02 13:41:28,330 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 882 transitions. Word has length 102 [2024-12-02 13:41:28,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:28,330 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 882 transitions. [2024-12-02 13:41:28,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,331 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 882 transitions. [2024-12-02 13:41:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 13:41:28,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:28,335 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:28,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:41:28,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:28,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -729830336, now seen corresponding path program 1 times [2024-12-02 13:41:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:28,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086857972] [2024-12-02 13:41:28,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:28,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:28,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:28,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086857972] [2024-12-02 13:41:28,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086857972] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:28,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:28,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:28,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698249434] [2024-12-02 13:41:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:28,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:28,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:28,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,504 INFO L87 Difference]: Start difference. First operand 535 states and 882 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:28,579 INFO L93 Difference]: Finished difference Result 1053 states and 1742 transitions. [2024-12-02 13:41:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:41:28,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 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 [2024-12-02 13:41:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:28,585 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 13:41:28,585 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:41:28,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,589 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 3 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:28,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2600 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:41:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:41:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 418 states have (on average 1.6650717703349283) internal successors, (696), 433 states have internal predecessors, (696), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 881 transitions. [2024-12-02 13:41:28,625 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 881 transitions. Word has length 103 [2024-12-02 13:41:28,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:28,625 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 881 transitions. [2024-12-02 13:41:28,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 881 transitions. [2024-12-02 13:41:28,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 13:41:28,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:28,630 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:28,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:41:28,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:28,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:28,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1684973069, now seen corresponding path program 1 times [2024-12-02 13:41:28,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:28,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571552893] [2024-12-02 13:41:28,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:28,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:28,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571552893] [2024-12-02 13:41:28,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571552893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:28,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:28,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494860357] [2024-12-02 13:41:28,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:28,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:28,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:28,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,789 INFO L87 Difference]: Start difference. First operand 535 states and 881 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:28,859 INFO L93 Difference]: Finished difference Result 1053 states and 1741 transitions. [2024-12-02 13:41:28,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:41:28,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 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 104 [2024-12-02 13:41:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:28,864 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 13:41:28,865 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:41:28,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:28,868 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 2 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:28,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2600 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:41:28,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:41:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 418 states have (on average 1.6626794258373205) internal successors, (695), 433 states have internal predecessors, (695), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 880 transitions. [2024-12-02 13:41:28,895 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 880 transitions. Word has length 104 [2024-12-02 13:41:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:28,896 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 880 transitions. [2024-12-02 13:41:28,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 880 transitions. [2024-12-02 13:41:28,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 13:41:28,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:28,899 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:28,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:41:28,900 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:28,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1306373540, now seen corresponding path program 1 times [2024-12-02 13:41:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:28,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598552778] [2024-12-02 13:41:28,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:28,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:29,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598552778] [2024-12-02 13:41:29,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598552778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:29,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:29,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:29,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960575472] [2024-12-02 13:41:29,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:29,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:29,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:29,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:29,039 INFO L87 Difference]: Start difference. First operand 535 states and 880 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:29,094 INFO L93 Difference]: Finished difference Result 1053 states and 1740 transitions. [2024-12-02 13:41:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:41:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 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 105 [2024-12-02 13:41:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:29,099 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 13:41:29,099 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:41:29,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:29,103 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 1 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:29,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2600 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:29,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:41:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:41:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 418 states have (on average 1.6602870813397128) internal successors, (694), 433 states have internal predecessors, (694), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:29,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 879 transitions. [2024-12-02 13:41:29,129 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 879 transitions. Word has length 105 [2024-12-02 13:41:29,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:29,129 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 879 transitions. [2024-12-02 13:41:29,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 879 transitions. [2024-12-02 13:41:29,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:41:29,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:29,132 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:29,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:41:29,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:29,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash -89678743, now seen corresponding path program 1 times [2024-12-02 13:41:29,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:29,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490601514] [2024-12-02 13:41:29,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:29,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:29,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:29,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490601514] [2024-12-02 13:41:29,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490601514] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:29,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:29,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:41:29,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033504059] [2024-12-02 13:41:29,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:29,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:41:29,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:29,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:41:29,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:41:29,395 INFO L87 Difference]: Start difference. First operand 535 states and 879 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:29,561 INFO L93 Difference]: Finished difference Result 1064 states and 1757 transitions. [2024-12-02 13:41:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:41:29,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 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 106 [2024-12-02 13:41:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:29,566 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 13:41:29,566 INFO L226 Difference]: Without dead ends: 550 [2024-12-02 13:41:29,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:29,570 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 91 mSDsluCounter, 5961 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6825 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:29,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6825 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-12-02 13:41:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 548. [2024-12-02 13:41:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 428 states have (on average 1.6565420560747663) internal successors, (709), 445 states have internal predecessors, (709), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2024-12-02 13:41:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 899 transitions. [2024-12-02 13:41:29,599 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 899 transitions. Word has length 106 [2024-12-02 13:41:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:29,599 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 899 transitions. [2024-12-02 13:41:29,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 899 transitions. [2024-12-02 13:41:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:41:29,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:29,603 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:29,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:41:29,603 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:29,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash 848852872, now seen corresponding path program 1 times [2024-12-02 13:41:29,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:29,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768590888] [2024-12-02 13:41:29,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:29,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:29,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:29,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768590888] [2024-12-02 13:41:29,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768590888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:29,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:29,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:41:29,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678162867] [2024-12-02 13:41:29,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:29,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:29,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:29,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:41:29,712 INFO L87 Difference]: Start difference. First operand 548 states and 899 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:29,773 INFO L93 Difference]: Finished difference Result 1071 states and 1768 transitions. [2024-12-02 13:41:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 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 [2024-12-02 13:41:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:29,777 INFO L225 Difference]: With dead ends: 1071 [2024-12-02 13:41:29,777 INFO L226 Difference]: Without dead ends: 544 [2024-12-02 13:41:29,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:41:29,781 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 1 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:29,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2595 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-12-02 13:41:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-12-02 13:41:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 426 states have (on average 1.6572769953051643) internal successors, (706), 442 states have internal predecessors, (706), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 90 states have call predecessors, (93), 92 states have call successors, (93) [2024-12-02 13:41:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 892 transitions. [2024-12-02 13:41:29,806 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 892 transitions. Word has length 106 [2024-12-02 13:41:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:29,807 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 892 transitions. [2024-12-02 13:41:29,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 892 transitions. [2024-12-02 13:41:29,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 13:41:29,810 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:29,810 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:29,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:41:29,811 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:29,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash -770658170, now seen corresponding path program 1 times [2024-12-02 13:41:29,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:29,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304618828] [2024-12-02 13:41:29,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:29,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:29,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304618828] [2024-12-02 13:41:29,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304618828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:29,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:29,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:41:29,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654240490] [2024-12-02 13:41:29,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:29,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:29,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:29,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:29,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:29,999 INFO L87 Difference]: Start difference. First operand 544 states and 892 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:30,269 INFO L93 Difference]: Finished difference Result 1114 states and 1840 transitions. [2024-12-02 13:41:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:41:30,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-12-02 13:41:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:30,273 INFO L225 Difference]: With dead ends: 1114 [2024-12-02 13:41:30,274 INFO L226 Difference]: Without dead ends: 576 [2024-12-02 13:41:30,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:41:30,277 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 72 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:30,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4126 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:41:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-12-02 13:41:30,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 549. [2024-12-02 13:41:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 431 states have (on average 1.642691415313225) internal successors, (708), 446 states have internal predecessors, (708), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:30,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 893 transitions. [2024-12-02 13:41:30,302 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 893 transitions. Word has length 107 [2024-12-02 13:41:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:30,302 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 893 transitions. [2024-12-02 13:41:30,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 893 transitions. [2024-12-02 13:41:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 13:41:30,305 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:30,306 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:30,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:41:30,306 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:30,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1076963924, now seen corresponding path program 1 times [2024-12-02 13:41:30,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:30,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749823556] [2024-12-02 13:41:30,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:30,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:30,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:30,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749823556] [2024-12-02 13:41:30,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749823556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:30,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:30,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:41:30,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698906508] [2024-12-02 13:41:30,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:30,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:30,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:30,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:30,458 INFO L87 Difference]: Start difference. First operand 549 states and 893 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:30,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:30,670 INFO L93 Difference]: Finished difference Result 1065 states and 1735 transitions. [2024-12-02 13:41:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:30,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-12-02 13:41:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:30,674 INFO L225 Difference]: With dead ends: 1065 [2024-12-02 13:41:30,674 INFO L226 Difference]: Without dead ends: 567 [2024-12-02 13:41:30,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:30,678 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 56 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:30,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4103 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:41:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-12-02 13:41:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 549. [2024-12-02 13:41:30,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 431 states have (on average 1.6334106728538282) internal successors, (704), 446 states have internal predecessors, (704), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 889 transitions. [2024-12-02 13:41:30,704 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 889 transitions. Word has length 108 [2024-12-02 13:41:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:30,704 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 889 transitions. [2024-12-02 13:41:30,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 889 transitions. [2024-12-02 13:41:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 13:41:30,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:30,708 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:30,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:41:30,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:30,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash -817850869, now seen corresponding path program 1 times [2024-12-02 13:41:30,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:30,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543322006] [2024-12-02 13:41:30,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:30,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:30,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:30,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543322006] [2024-12-02 13:41:30,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543322006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:30,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:30,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:41:30,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029293091] [2024-12-02 13:41:30,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:30,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:30,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:30,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:30,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:30,878 INFO L87 Difference]: Start difference. First operand 549 states and 889 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:31,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:31,072 INFO L93 Difference]: Finished difference Result 1065 states and 1731 transitions. [2024-12-02 13:41:31,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:31,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-12-02 13:41:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:31,077 INFO L225 Difference]: With dead ends: 1065 [2024-12-02 13:41:31,077 INFO L226 Difference]: Without dead ends: 567 [2024-12-02 13:41:31,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:31,080 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 55 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:31,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4098 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-12-02 13:41:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 549. [2024-12-02 13:41:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 431 states have (on average 1.6241299303944317) internal successors, (700), 446 states have internal predecessors, (700), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 885 transitions. [2024-12-02 13:41:31,105 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 885 transitions. Word has length 109 [2024-12-02 13:41:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:31,105 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 885 transitions. [2024-12-02 13:41:31,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 885 transitions. [2024-12-02 13:41:31,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 13:41:31,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:31,109 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:31,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:41:31,109 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:31,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash 970355339, now seen corresponding path program 1 times [2024-12-02 13:41:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922505274] [2024-12-02 13:41:31,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:31,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922505274] [2024-12-02 13:41:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922505274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:31,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:31,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:41:31,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345123437] [2024-12-02 13:41:31,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:31,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:41:31,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:31,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:41:31,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:31,284 INFO L87 Difference]: Start difference. First operand 549 states and 885 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:31,371 INFO L93 Difference]: Finished difference Result 1056 states and 1713 transitions. [2024-12-02 13:41:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:41:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 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 109 [2024-12-02 13:41:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:31,375 INFO L225 Difference]: With dead ends: 1056 [2024-12-02 13:41:31,375 INFO L226 Difference]: Without dead ends: 537 [2024-12-02 13:41:31,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:41:31,379 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 94 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:31,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5034 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-12-02 13:41:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 528. [2024-12-02 13:41:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 410 states have (on average 1.6170731707317074) internal successors, (663), 425 states have internal predecessors, (663), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 848 transitions. [2024-12-02 13:41:31,402 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 848 transitions. Word has length 109 [2024-12-02 13:41:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:31,403 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 848 transitions. [2024-12-02 13:41:31,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 848 transitions. [2024-12-02 13:41:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 13:41:31,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:31,406 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:31,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:41:31,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:31,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash -210623919, now seen corresponding path program 1 times [2024-12-02 13:41:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700740173] [2024-12-02 13:41:31,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:31,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700740173] [2024-12-02 13:41:31,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700740173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:31,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:31,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:41:31,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682849560] [2024-12-02 13:41:31,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:31,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:31,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:31,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:31,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:31,559 INFO L87 Difference]: Start difference. First operand 528 states and 848 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:31,684 INFO L93 Difference]: Finished difference Result 1035 states and 1676 transitions. [2024-12-02 13:41:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:31,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-12-02 13:41:31,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:31,689 INFO L225 Difference]: With dead ends: 1035 [2024-12-02 13:41:31,689 INFO L226 Difference]: Without dead ends: 537 [2024-12-02 13:41:31,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:31,692 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 39 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:31,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4103 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:31,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-12-02 13:41:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 528. [2024-12-02 13:41:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 410 states have (on average 1.6146341463414635) internal successors, (662), 425 states have internal predecessors, (662), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 847 transitions. [2024-12-02 13:41:31,718 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 847 transitions. Word has length 110 [2024-12-02 13:41:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:31,718 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 847 transitions. [2024-12-02 13:41:31,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 847 transitions. [2024-12-02 13:41:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 13:41:31,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:31,722 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:31,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:41:31,722 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:31,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:31,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1696768112, now seen corresponding path program 1 times [2024-12-02 13:41:31,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:31,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945933281] [2024-12-02 13:41:31,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:31,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945933281] [2024-12-02 13:41:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945933281] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:31,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:41:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831887325] [2024-12-02 13:41:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:31,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:31,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:31,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:31,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:31,902 INFO L87 Difference]: Start difference. First operand 528 states and 847 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:32,006 INFO L93 Difference]: Finished difference Result 1035 states and 1675 transitions. [2024-12-02 13:41:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-12-02 13:41:32,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:32,011 INFO L225 Difference]: With dead ends: 1035 [2024-12-02 13:41:32,011 INFO L226 Difference]: Without dead ends: 537 [2024-12-02 13:41:32,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:32,014 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 38 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:32,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4103 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-12-02 13:41:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 528. [2024-12-02 13:41:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 410 states have (on average 1.6121951219512196) internal successors, (661), 425 states have internal predecessors, (661), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 846 transitions. [2024-12-02 13:41:32,037 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 846 transitions. Word has length 111 [2024-12-02 13:41:32,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:32,037 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 846 transitions. [2024-12-02 13:41:32,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:41:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 846 transitions. [2024-12-02 13:41:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 13:41:32,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:32,041 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:32,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:41:32,041 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:32,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:32,041 INFO L85 PathProgramCache]: Analyzing trace with hash 642058998, now seen corresponding path program 1 times [2024-12-02 13:41:32,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:32,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333327784] [2024-12-02 13:41:32,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:41:32,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:32,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333327784] [2024-12-02 13:41:32,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333327784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:32,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:32,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:41:32,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567851092] [2024-12-02 13:41:32,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:32,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:41:32,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:32,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:41:32,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:32,283 INFO L87 Difference]: Start difference. First operand 528 states and 846 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:32,456 INFO L93 Difference]: Finished difference Result 1025 states and 1657 transitions. [2024-12-02 13:41:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:41:32,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 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 112 [2024-12-02 13:41:32,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:32,461 INFO L225 Difference]: With dead ends: 1025 [2024-12-02 13:41:32,461 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 13:41:32,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:32,465 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 21 mSDsluCounter, 6385 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7187 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:32,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7187 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 13:41:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 530. [2024-12-02 13:41:32,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.6067961165048543) internal successors, (662), 427 states have internal predecessors, (662), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 13:41:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 847 transitions. [2024-12-02 13:41:32,487 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 847 transitions. Word has length 112 [2024-12-02 13:41:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:32,487 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 847 transitions. [2024-12-02 13:41:32,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:41:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 847 transitions. [2024-12-02 13:41:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:41:32,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:32,491 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:32,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:41:32,491 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:32,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash 5022181, now seen corresponding path program 1 times [2024-12-02 13:41:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:32,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767312041] [2024-12-02 13:41:32,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:32,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:41:32,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767312041] [2024-12-02 13:41:32,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767312041] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990324625] [2024-12-02 13:41:32,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:32,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:32,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:32,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:41:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:32,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:32,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:41:32,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:32,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990324625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:32,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:32,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 13:41:32,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56393291] [2024-12-02 13:41:32,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:32,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:41:32,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:32,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:41:32,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:32,980 INFO L87 Difference]: Start difference. First operand 530 states and 847 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:33,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:33,041 INFO L93 Difference]: Finished difference Result 1499 states and 2462 transitions. [2024-12-02 13:41:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:41:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-12-02 13:41:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:33,047 INFO L225 Difference]: With dead ends: 1499 [2024-12-02 13:41:33,048 INFO L226 Difference]: Without dead ends: 1012 [2024-12-02 13:41:33,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:41:33,050 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 823 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:33,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 1684 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-12-02 13:41:33,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1005. [2024-12-02 13:41:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 781 states have (on average 1.6274007682458387) internal successors, (1271), 809 states have internal predecessors, (1271), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2024-12-02 13:41:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1637 transitions. [2024-12-02 13:41:33,082 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1637 transitions. Word has length 113 [2024-12-02 13:41:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:33,083 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1637 transitions. [2024-12-02 13:41:33,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1637 transitions. [2024-12-02 13:41:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:41:33,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:33,086 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:33,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:41:33,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 13:41:33,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:33,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -57017433, now seen corresponding path program 1 times [2024-12-02 13:41:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:33,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455124168] [2024-12-02 13:41:33,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:41:33,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:33,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455124168] [2024-12-02 13:41:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455124168] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:33,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402383878] [2024-12-02 13:41:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:33,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:33,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:33,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:33,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:41:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:33,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:41:33,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:41:33,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:33,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402383878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:33,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:33,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 13:41:33,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205599969] [2024-12-02 13:41:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:33,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:33,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:33,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:33,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:41:33,882 INFO L87 Difference]: Start difference. First operand 1005 states and 1637 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:34,458 INFO L93 Difference]: Finished difference Result 1983 states and 3303 transitions. [2024-12-02 13:41:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:34,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-12-02 13:41:34,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:34,467 INFO L225 Difference]: With dead ends: 1983 [2024-12-02 13:41:34,467 INFO L226 Difference]: Without dead ends: 1021 [2024-12-02 13:41:34,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:34,473 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 785 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:34,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2060 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-12-02 13:41:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2024-12-02 13:41:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 795 states have (on average 1.628930817610063) internal successors, (1295), 823 states have internal predecessors, (1295), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2024-12-02 13:41:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1663 transitions. [2024-12-02 13:41:34,534 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1663 transitions. Word has length 113 [2024-12-02 13:41:34,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:34,534 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1663 transitions. [2024-12-02 13:41:34,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1663 transitions. [2024-12-02 13:41:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 13:41:34,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:34,537 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:34,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:41:34,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 13:41:34,738 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:34,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:34,738 INFO L85 PathProgramCache]: Analyzing trace with hash 389329832, now seen corresponding path program 1 times [2024-12-02 13:41:34,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:34,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397282404] [2024-12-02 13:41:34,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:34,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:41:34,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:34,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397282404] [2024-12-02 13:41:34,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397282404] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:34,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320628290] [2024-12-02 13:41:34,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:34,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:34,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:41:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:35,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:41:35,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:41:35,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:35,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320628290] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:35,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:35,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 13:41:35,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467963827] [2024-12-02 13:41:35,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:35,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:35,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:35,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:35,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:41:35,312 INFO L87 Difference]: Start difference. First operand 1021 states and 1663 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:35,843 INFO L93 Difference]: Finished difference Result 2015 states and 3349 transitions. [2024-12-02 13:41:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-12-02 13:41:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:35,850 INFO L225 Difference]: With dead ends: 2015 [2024-12-02 13:41:35,851 INFO L226 Difference]: Without dead ends: 1037 [2024-12-02 13:41:35,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:35,856 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 779 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:35,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2057 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-12-02 13:41:35,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2024-12-02 13:41:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 809 states have (on average 1.6304079110012362) internal successors, (1319), 837 states have internal predecessors, (1319), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2024-12-02 13:41:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1689 transitions. [2024-12-02 13:41:35,905 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1689 transitions. Word has length 116 [2024-12-02 13:41:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:35,905 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1689 transitions. [2024-12-02 13:41:35,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1689 transitions. [2024-12-02 13:41:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:41:35,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:35,908 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:35,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:41:36,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 13:41:36,109 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:36,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2144979837, now seen corresponding path program 1 times [2024-12-02 13:41:36,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:36,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237835016] [2024-12-02 13:41:36,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:36,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:36,227 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-02 13:41:36,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:36,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237835016] [2024-12-02 13:41:36,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237835016] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:36,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873910027] [2024-12-02 13:41:36,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:36,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:36,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:36,229 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:36,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:41:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:36,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:41:36,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-02 13:41:36,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:36,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873910027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:36,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:36,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 13:41:36,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369105435] [2024-12-02 13:41:36,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:36,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:36,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:36,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:36,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:41:36,629 INFO L87 Difference]: Start difference. First operand 1037 states and 1689 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:37,110 INFO L93 Difference]: Finished difference Result 2047 states and 3395 transitions. [2024-12-02 13:41:37,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:37,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-12-02 13:41:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:37,116 INFO L225 Difference]: With dead ends: 2047 [2024-12-02 13:41:37,116 INFO L226 Difference]: Without dead ends: 1053 [2024-12-02 13:41:37,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:37,120 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 778 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:37,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 2054 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:41:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-12-02 13:41:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053. [2024-12-02 13:41:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 823 states have (on average 1.6318347509113) internal successors, (1343), 851 states have internal predecessors, (1343), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2024-12-02 13:41:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1715 transitions. [2024-12-02 13:41:37,152 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1715 transitions. Word has length 119 [2024-12-02 13:41:37,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:37,152 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1715 transitions. [2024-12-02 13:41:37,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1715 transitions. [2024-12-02 13:41:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:41:37,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:37,155 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:37,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:41:37,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 13:41:37,355 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:37,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1093070780, now seen corresponding path program 1 times [2024-12-02 13:41:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784087373] [2024-12-02 13:41:37,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 13:41:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784087373] [2024-12-02 13:41:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784087373] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324876447] [2024-12-02 13:41:37,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:37,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:37,442 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:37,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:41:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:37,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:41:37,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 13:41:37,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:37,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324876447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:37,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:37,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 13:41:37,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775711621] [2024-12-02 13:41:37,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:37,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:37,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:37,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:37,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:41:37,820 INFO L87 Difference]: Start difference. First operand 1053 states and 1715 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:38,242 INFO L93 Difference]: Finished difference Result 2079 states and 3441 transitions. [2024-12-02 13:41:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:38,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-12-02 13:41:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:38,249 INFO L225 Difference]: With dead ends: 2079 [2024-12-02 13:41:38,250 INFO L226 Difference]: Without dead ends: 1069 [2024-12-02 13:41:38,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:38,256 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 773 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:38,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2051 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:41:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-12-02 13:41:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1069. [2024-12-02 13:41:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 837 states have (on average 1.6332138590203107) internal successors, (1367), 865 states have internal predecessors, (1367), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2024-12-02 13:41:38,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1741 transitions. [2024-12-02 13:41:38,301 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1741 transitions. Word has length 122 [2024-12-02 13:41:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:38,301 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1741 transitions. [2024-12-02 13:41:38,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:41:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1741 transitions. [2024-12-02 13:41:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:41:38,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:38,304 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 13:41:38,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:41:38,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:38,505 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:38,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1000229025, now seen corresponding path program 1 times [2024-12-02 13:41:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2209615] [2024-12-02 13:41:38,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 13:41:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:38,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2209615] [2024-12-02 13:41:38,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2209615] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:38,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976239204] [2024-12-02 13:41:38,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:38,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:38,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:38,750 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:38,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:41:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:39,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:41:39,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 13:41:39,165 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:39,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976239204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:39,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:39,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 13:41:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261051401] [2024-12-02 13:41:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:39,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:39,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:39,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:39,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:41:39,167 INFO L87 Difference]: Start difference. First operand 1069 states and 1741 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:41:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:39,627 INFO L93 Difference]: Finished difference Result 2105 states and 3457 transitions. [2024-12-02 13:41:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:39,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2024-12-02 13:41:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:39,632 INFO L225 Difference]: With dead ends: 2105 [2024-12-02 13:41:39,632 INFO L226 Difference]: Without dead ends: 1079 [2024-12-02 13:41:39,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:41:39,635 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 741 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:39,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 3572 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:41:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-12-02 13:41:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1072. [2024-12-02 13:41:39,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 839 states have (on average 1.631704410011919) internal successors, (1369), 868 states have internal predecessors, (1369), 178 states have call successors, (178), 54 states have call predecessors, (178), 54 states have return successors, (197), 175 states have call predecessors, (197), 176 states have call successors, (197) [2024-12-02 13:41:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1744 transitions. [2024-12-02 13:41:39,690 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1744 transitions. Word has length 125 [2024-12-02 13:41:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:39,690 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1744 transitions. [2024-12-02 13:41:39,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:41:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1744 transitions. [2024-12-02 13:41:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:41:39,693 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:39,693 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:39,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:41:39,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:39,893 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:39,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:39,894 INFO L85 PathProgramCache]: Analyzing trace with hash 365327519, now seen corresponding path program 1 times [2024-12-02 13:41:39,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:39,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221724143] [2024-12-02 13:41:39,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:39,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 13:41:40,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:40,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221724143] [2024-12-02 13:41:40,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221724143] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:40,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130042810] [2024-12-02 13:41:40,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:40,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:40,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:40,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:41:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:40,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 13:41:40,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:41:40,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130042810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:40,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 13:41:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843836419] [2024-12-02 13:41:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:40,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:40,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:40,548 INFO L87 Difference]: Start difference. First operand 1072 states and 1744 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 13:41:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:40,929 INFO L93 Difference]: Finished difference Result 2119 states and 3495 transitions. [2024-12-02 13:41:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:41:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-12-02 13:41:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:40,938 INFO L225 Difference]: With dead ends: 2119 [2024-12-02 13:41:40,938 INFO L226 Difference]: Without dead ends: 1090 [2024-12-02 13:41:40,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:41:40,944 INFO L435 NwaCegarLoop]: 925 mSDtfsCounter, 756 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:40,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 3357 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:41:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-12-02 13:41:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1082. [2024-12-02 13:41:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 845 states have (on average 1.6272189349112427) internal successors, (1375), 877 states have internal predecessors, (1375), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2024-12-02 13:41:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1762 transitions. [2024-12-02 13:41:40,991 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1762 transitions. Word has length 127 [2024-12-02 13:41:40,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:40,992 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1762 transitions. [2024-12-02 13:41:40,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 13:41:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1762 transitions. [2024-12-02 13:41:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:41:40,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:40,995 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:41,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:41:41,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 13:41:41,196 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:41,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1936170729, now seen corresponding path program 1 times [2024-12-02 13:41:41,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:41,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713006818] [2024-12-02 13:41:41,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:41,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 13:41:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:41,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713006818] [2024-12-02 13:41:41,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713006818] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:41,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483254394] [2024-12-02 13:41:41,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:41,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:41,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:41,458 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:41,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:41:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:41,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:41:41,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:41:41,745 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:41,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483254394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:41,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:41,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-12-02 13:41:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298680202] [2024-12-02 13:41:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:41,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:41:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:41,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:41:41,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:41,747 INFO L87 Difference]: Start difference. First operand 1082 states and 1762 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:41,814 INFO L93 Difference]: Finished difference Result 2631 states and 4354 transitions. [2024-12-02 13:41:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:41:41,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-12-02 13:41:41,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:41,822 INFO L225 Difference]: With dead ends: 2631 [2024-12-02 13:41:41,823 INFO L226 Difference]: Without dead ends: 1593 [2024-12-02 13:41:41,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:41,828 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 787 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:41,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 2408 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2024-12-02 13:41:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1082. [2024-12-02 13:41:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 845 states have (on average 1.6260355029585798) internal successors, (1374), 877 states have internal predecessors, (1374), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2024-12-02 13:41:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1761 transitions. [2024-12-02 13:41:41,864 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1761 transitions. Word has length 132 [2024-12-02 13:41:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:41,864 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1761 transitions. [2024-12-02 13:41:41,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1761 transitions. [2024-12-02 13:41:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:41:41,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:41,867 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:41,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:41:42,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 13:41:42,068 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:42,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1234570855, now seen corresponding path program 1 times [2024-12-02 13:41:42,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:42,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684668896] [2024-12-02 13:41:42,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:42,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 13:41:42,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684668896] [2024-12-02 13:41:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684668896] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111241478] [2024-12-02 13:41:42,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:42,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:42,309 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:42,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:41:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:42,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 13:41:42,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:41:42,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:42,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111241478] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:42,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:42,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 13:41:42,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201261938] [2024-12-02 13:41:42,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:41:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:42,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:41:42,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:42,646 INFO L87 Difference]: Start difference. First operand 1082 states and 1761 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:42,721 INFO L93 Difference]: Finished difference Result 2692 states and 4408 transitions. [2024-12-02 13:41:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:42,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-12-02 13:41:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:42,732 INFO L225 Difference]: With dead ends: 2692 [2024-12-02 13:41:42,732 INFO L226 Difference]: Without dead ends: 1655 [2024-12-02 13:41:42,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:41:42,737 INFO L435 NwaCegarLoop]: 902 mSDtfsCounter, 344 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:42,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 3529 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-12-02 13:41:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2024-12-02 13:41:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1297 states have (on average 1.6013878180416345) internal successors, (2077), 1334 states have internal predecessors, (2077), 264 states have call successors, (264), 91 states have call predecessors, (264), 93 states have return successors, (343), 255 states have call predecessors, (343), 260 states have call successors, (343) [2024-12-02 13:41:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2684 transitions. [2024-12-02 13:41:42,810 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2684 transitions. Word has length 132 [2024-12-02 13:41:42,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:42,810 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2684 transitions. [2024-12-02 13:41:42,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2684 transitions. [2024-12-02 13:41:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:41:42,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:42,814 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:42,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:41:43,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 13:41:43,014 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:43,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1844242715, now seen corresponding path program 1 times [2024-12-02 13:41:43,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:43,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951430387] [2024-12-02 13:41:43,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 13:41:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:43,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951430387] [2024-12-02 13:41:43,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951430387] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:43,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476748955] [2024-12-02 13:41:43,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:43,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:43,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:43,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:43,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:41:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:43,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:43,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:41:43,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:43,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476748955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:43,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:43,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-12-02 13:41:43,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456430707] [2024-12-02 13:41:43,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:43,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:41:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:43,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:41:43,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:43,523 INFO L87 Difference]: Start difference. First operand 1655 states and 2684 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:43,568 INFO L93 Difference]: Finished difference Result 3015 states and 4883 transitions. [2024-12-02 13:41:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:41:43,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-12-02 13:41:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:43,578 INFO L225 Difference]: With dead ends: 3015 [2024-12-02 13:41:43,578 INFO L226 Difference]: Without dead ends: 1405 [2024-12-02 13:41:43,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:43,585 INFO L435 NwaCegarLoop]: 932 mSDtfsCounter, 548 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:43,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:41:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-12-02 13:41:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2024-12-02 13:41:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1099 states have (on average 1.5832575068243857) internal successors, (1740), 1127 states have internal predecessors, (1740), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 2242 transitions. [2024-12-02 13:41:43,646 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 2242 transitions. Word has length 132 [2024-12-02 13:41:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:43,646 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 2242 transitions. [2024-12-02 13:41:43,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 13:41:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 2242 transitions. [2024-12-02 13:41:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 13:41:43,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:43,649 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:43,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:41:43,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 13:41:43,850 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:43,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1831147049, now seen corresponding path program 1 times [2024-12-02 13:41:43,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764470209] [2024-12-02 13:41:43,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-02 13:41:44,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:44,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764470209] [2024-12-02 13:41:44,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764470209] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:44,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132576206] [2024-12-02 13:41:44,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:44,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:44,054 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:44,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:41:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:44,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:44,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:41:44,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:44,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132576206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:44,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:44,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:41:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405617584] [2024-12-02 13:41:44,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:44,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:44,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:44,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:44,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:44,320 INFO L87 Difference]: Start difference. First operand 1405 states and 2242 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:44,466 INFO L93 Difference]: Finished difference Result 2855 states and 4616 transitions. [2024-12-02 13:41:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:44,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2024-12-02 13:41:44,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:44,473 INFO L225 Difference]: With dead ends: 2855 [2024-12-02 13:41:44,473 INFO L226 Difference]: Without dead ends: 1495 [2024-12-02 13:41:44,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:44,478 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 144 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:44,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2275 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-12-02 13:41:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1483. [2024-12-02 13:41:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1175 states have (on average 1.6051063829787233) internal successors, (1886), 1203 states have internal predecessors, (1886), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2388 transitions. [2024-12-02 13:41:44,526 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2388 transitions. Word has length 155 [2024-12-02 13:41:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:44,527 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 2388 transitions. [2024-12-02 13:41:44,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2388 transitions. [2024-12-02 13:41:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:41:44,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:44,530 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:44,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:41:44,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 13:41:44,730 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:44,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:44,731 INFO L85 PathProgramCache]: Analyzing trace with hash 615914772, now seen corresponding path program 1 times [2024-12-02 13:41:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:44,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013266854] [2024-12-02 13:41:44,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 13:41:44,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:44,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013266854] [2024-12-02 13:41:44,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013266854] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:44,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051601182] [2024-12-02 13:41:44,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:44,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:44,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:44,878 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:44,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:41:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:45,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:45,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 13:41:45,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:45,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051601182] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:45,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:45,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:41:45,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392320525] [2024-12-02 13:41:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:45,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:45,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:45,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:45,155 INFO L87 Difference]: Start difference. First operand 1483 states and 2388 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:45,335 INFO L93 Difference]: Finished difference Result 3017 states and 4910 transitions. [2024-12-02 13:41:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-12-02 13:41:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:45,342 INFO L225 Difference]: With dead ends: 3017 [2024-12-02 13:41:45,342 INFO L226 Difference]: Without dead ends: 1579 [2024-12-02 13:41:45,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:45,347 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 142 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:45,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2272 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-12-02 13:41:45,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1561. [2024-12-02 13:41:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1251 states have (on average 1.624300559552358) internal successors, (2032), 1279 states have internal predecessors, (2032), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2534 transitions. [2024-12-02 13:41:45,391 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2534 transitions. Word has length 160 [2024-12-02 13:41:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:45,391 INFO L471 AbstractCegarLoop]: Abstraction has 1561 states and 2534 transitions. [2024-12-02 13:41:45,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2534 transitions. [2024-12-02 13:41:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:41:45,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:45,394 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:45,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:41:45,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 13:41:45,594 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:45,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1201083900, now seen corresponding path program 1 times [2024-12-02 13:41:45,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:45,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906646749] [2024-12-02 13:41:45,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-12-02 13:41:45,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906646749] [2024-12-02 13:41:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906646749] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232352856] [2024-12-02 13:41:45,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:45,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:45,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:45,750 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:45,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:41:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:46,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:46,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 13:41:46,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232352856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:46,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:41:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268045436] [2024-12-02 13:41:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:46,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:46,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:46,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:46,046 INFO L87 Difference]: Start difference. First operand 1561 states and 2534 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:46,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:46,269 INFO L93 Difference]: Finished difference Result 3179 states and 5204 transitions. [2024-12-02 13:41:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2024-12-02 13:41:46,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:46,282 INFO L225 Difference]: With dead ends: 3179 [2024-12-02 13:41:46,283 INFO L226 Difference]: Without dead ends: 1663 [2024-12-02 13:41:46,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:46,289 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 140 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:46,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2269 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:41:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-12-02 13:41:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1639. [2024-12-02 13:41:46,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1327 states have (on average 1.6412961567445365) internal successors, (2178), 1355 states have internal predecessors, (2178), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2680 transitions. [2024-12-02 13:41:46,354 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2680 transitions. Word has length 164 [2024-12-02 13:41:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:46,355 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2680 transitions. [2024-12-02 13:41:46,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2680 transitions. [2024-12-02 13:41:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 13:41:46,358 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:46,359 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:46,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:41:46,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 13:41:46,559 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:46,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1385188919, now seen corresponding path program 1 times [2024-12-02 13:41:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732697228] [2024-12-02 13:41:46,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:46,702 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 13:41:46,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:46,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732697228] [2024-12-02 13:41:46,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732697228] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210216038] [2024-12-02 13:41:46,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:46,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:46,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:46,704 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:46,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:41:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:46,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:46,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 13:41:46,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:46,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210216038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:46,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:46,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:41:46,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433519839] [2024-12-02 13:41:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:46,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:46,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:46,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:46,989 INFO L87 Difference]: Start difference. First operand 1639 states and 2680 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:47,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:47,196 INFO L93 Difference]: Finished difference Result 3341 states and 5498 transitions. [2024-12-02 13:41:47,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:47,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2024-12-02 13:41:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:47,206 INFO L225 Difference]: With dead ends: 3341 [2024-12-02 13:41:47,206 INFO L226 Difference]: Without dead ends: 1747 [2024-12-02 13:41:47,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:47,212 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 138 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:47,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2266 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-12-02 13:41:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1717. [2024-12-02 13:41:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1403 states have (on average 1.6564504632929438) internal successors, (2324), 1431 states have internal predecessors, (2324), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2826 transitions. [2024-12-02 13:41:47,275 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2826 transitions. Word has length 167 [2024-12-02 13:41:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:47,275 INFO L471 AbstractCegarLoop]: Abstraction has 1717 states and 2826 transitions. [2024-12-02 13:41:47,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2826 transitions. [2024-12-02 13:41:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 13:41:47,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:47,278 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:47,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 13:41:47,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 13:41:47,478 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:47,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:47,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1195853639, now seen corresponding path program 1 times [2024-12-02 13:41:47,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:47,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577971753] [2024-12-02 13:41:47,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 13:41:47,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577971753] [2024-12-02 13:41:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577971753] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206707897] [2024-12-02 13:41:47,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:47,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:47,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:47,620 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:47,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 13:41:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:47,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:41:47,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 13:41:47,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:47,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206707897] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:47,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:47,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:41:47,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707065723] [2024-12-02 13:41:47,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:47,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:41:47,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:47,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:41:47,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:47,877 INFO L87 Difference]: Start difference. First operand 1717 states and 2826 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:48,075 INFO L93 Difference]: Finished difference Result 3503 states and 5792 transitions. [2024-12-02 13:41:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:41:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2024-12-02 13:41:48,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:48,082 INFO L225 Difference]: With dead ends: 3503 [2024-12-02 13:41:48,082 INFO L226 Difference]: Without dead ends: 1831 [2024-12-02 13:41:48,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:48,089 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 136 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:48,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2259 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-12-02 13:41:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1795. [2024-12-02 13:41:48,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1479 states have (on average 1.670047329276538) internal successors, (2470), 1507 states have internal predecessors, (2470), 223 states have call successors, (223), 93 states have call predecessors, (223), 92 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-12-02 13:41:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2972 transitions. [2024-12-02 13:41:48,143 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2972 transitions. Word has length 169 [2024-12-02 13:41:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:48,144 INFO L471 AbstractCegarLoop]: Abstraction has 1795 states and 2972 transitions. [2024-12-02 13:41:48,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:41:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2972 transitions. [2024-12-02 13:41:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 13:41:48,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:48,148 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:48,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 13:41:48,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 13:41:48,348 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:48,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:48,348 INFO L85 PathProgramCache]: Analyzing trace with hash -51112536, now seen corresponding path program 1 times [2024-12-02 13:41:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:48,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973530514] [2024-12-02 13:41:48,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:48,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 13:41:48,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973530514] [2024-12-02 13:41:48,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973530514] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438632865] [2024-12-02 13:41:48,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:48,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:48,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:48,503 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:48,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 13:41:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:48,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 13:41:48,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 13:41:48,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:41:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438632865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:41:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-12-02 13:41:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051979437] [2024-12-02 13:41:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:48,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:41:48,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:48,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:41:48,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:41:48,977 INFO L87 Difference]: Start difference. First operand 1795 states and 2972 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:41:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:51,277 INFO L93 Difference]: Finished difference Result 5584 states and 9391 transitions. [2024-12-02 13:41:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:41:51,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2024-12-02 13:41:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:51,300 INFO L225 Difference]: With dead ends: 5584 [2024-12-02 13:41:51,300 INFO L226 Difference]: Without dead ends: 3458 [2024-12-02 13:41:51,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:41:51,327 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 1857 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 4287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:51,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 2331 Invalid, 4287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 13:41:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3458 states. [2024-12-02 13:41:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3458 to 3446. [2024-12-02 13:41:51,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 2795 states have (on average 1.673345259391771) internal successors, (4677), 2877 states have internal predecessors, (4677), 463 states have call successors, (463), 167 states have call predecessors, (463), 187 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2024-12-02 13:41:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 5747 transitions. [2024-12-02 13:41:51,412 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 5747 transitions. Word has length 169 [2024-12-02 13:41:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:51,412 INFO L471 AbstractCegarLoop]: Abstraction has 3446 states and 5747 transitions. [2024-12-02 13:41:51,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:41:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 5747 transitions. [2024-12-02 13:41:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 13:41:51,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:51,417 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:51,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 13:41:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:51,618 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:51,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2032625027, now seen corresponding path program 1 times [2024-12-02 13:41:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540769293] [2024-12-02 13:41:51,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 13:41:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:51,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540769293] [2024-12-02 13:41:51,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540769293] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:51,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:51,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:41:51,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111000511] [2024-12-02 13:41:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:51,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:41:51,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:51,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:41:51,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:41:51,715 INFO L87 Difference]: Start difference. First operand 3446 states and 5747 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:41:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:51,861 INFO L93 Difference]: Finished difference Result 6718 states and 11234 transitions. [2024-12-02 13:41:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:41:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2024-12-02 13:41:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:51,897 INFO L225 Difference]: With dead ends: 6718 [2024-12-02 13:41:51,897 INFO L226 Difference]: Without dead ends: 3179 [2024-12-02 13:41:51,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:51,907 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 30 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:51,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5591 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:41:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-12-02 13:41:51,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3167. [2024-12-02 13:41:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 2616 states have (on average 1.694189602446483) internal successors, (4432), 2685 states have internal predecessors, (4432), 383 states have call successors, (383), 155 states have call predecessors, (383), 167 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2024-12-02 13:41:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 5292 transitions. [2024-12-02 13:41:51,986 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 5292 transitions. Word has length 172 [2024-12-02 13:41:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:51,987 INFO L471 AbstractCegarLoop]: Abstraction has 3167 states and 5292 transitions. [2024-12-02 13:41:51,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:41:51,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 5292 transitions. [2024-12-02 13:41:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-12-02 13:41:51,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:51,995 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:51,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:41:51,995 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:51,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:51,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1380678597, now seen corresponding path program 1 times [2024-12-02 13:41:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:51,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710503036] [2024-12-02 13:41:51,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 36 proven. 101 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2024-12-02 13:41:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710503036] [2024-12-02 13:41:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710503036] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480019846] [2024-12-02 13:41:52,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:52,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:52,481 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:52,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 13:41:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:52,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:41:53,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 343 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2024-12-02 13:41:53,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2024-12-02 13:41:54,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480019846] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:54,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:54,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2024-12-02 13:41:54,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614147216] [2024-12-02 13:41:54,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:54,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 13:41:54,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:54,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 13:41:54,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:41:54,131 INFO L87 Difference]: Start difference. First operand 3167 states and 5292 transitions. Second operand has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-12-02 13:42:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:38,361 INFO L93 Difference]: Finished difference Result 47743 states and 84863 transitions. [2024-12-02 13:42:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-12-02 13:42:38,362 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) Word has length 460 [2024-12-02 13:42:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:38,744 INFO L225 Difference]: With dead ends: 47743 [2024-12-02 13:42:38,744 INFO L226 Difference]: Without dead ends: 44516 [2024-12-02 13:42:38,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1480 GetRequests, 1031 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93142 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2024-12-02 13:42:38,881 INFO L435 NwaCegarLoop]: 2379 mSDtfsCounter, 45744 mSDsluCounter, 19719 mSDsCounter, 0 mSdLazyCounter, 65492 mSolverCounterSat, 16615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45758 SdHoareTripleChecker+Valid, 22098 SdHoareTripleChecker+Invalid, 82107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 16615 IncrementalHoareTripleChecker+Valid, 65492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:38,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45758 Valid, 22098 Invalid, 82107 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [16615 Valid, 65492 Invalid, 0 Unknown, 0 Unchecked, 31.8s Time] [2024-12-02 13:42:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44516 states. [2024-12-02 13:42:41,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44516 to 36523. [2024-12-02 13:42:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36523 states, 30179 states have (on average 1.676033003081613) internal successors, (50581), 31044 states have internal predecessors, (50581), 4150 states have call successors, (4150), 1843 states have call predecessors, (4150), 2193 states have return successors, (6535), 4211 states have call predecessors, (6535), 4132 states have call successors, (6535) [2024-12-02 13:42:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36523 states to 36523 states and 61266 transitions. [2024-12-02 13:42:41,893 INFO L78 Accepts]: Start accepts. Automaton has 36523 states and 61266 transitions. Word has length 460 [2024-12-02 13:42:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:41,894 INFO L471 AbstractCegarLoop]: Abstraction has 36523 states and 61266 transitions. [2024-12-02 13:42:41,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-12-02 13:42:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 36523 states and 61266 transitions. [2024-12-02 13:42:42,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-12-02 13:42:42,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:42,203 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:42:42,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 13:42:42,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:42:42,404 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:42,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1771388711, now seen corresponding path program 1 times [2024-12-02 13:42:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818370746] [2024-12-02 13:42:42,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 61 proven. 75 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2024-12-02 13:42:43,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:43,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818370746] [2024-12-02 13:42:43,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818370746] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:42:43,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276614448] [2024-12-02 13:42:43,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:43,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:42:43,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:42:43,532 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:42:43,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 13:42:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:44,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:42:44,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:42:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2024-12-02 13:42:44,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:42:44,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276614448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:44,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:42:44,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-12-02 13:42:44,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829918555] [2024-12-02 13:42:44,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:44,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:42:44,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:44,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:42:44,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:42:44,284 INFO L87 Difference]: Start difference. First operand 36523 states and 61266 transitions. Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 13:42:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:46,068 INFO L93 Difference]: Finished difference Result 73427 states and 123826 transitions. [2024-12-02 13:42:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:42:46,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 503 [2024-12-02 13:42:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:46,298 INFO L225 Difference]: With dead ends: 73427 [2024-12-02 13:42:46,298 INFO L226 Difference]: Without dead ends: 36973 [2024-12-02 13:42:46,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:42:46,522 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 0 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:46,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4081 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:42:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36973 states. [2024-12-02 13:42:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36973 to 36847. [2024-12-02 13:42:48,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36847 states, 30413 states have (on average 1.6708315522967152) internal successors, (50815), 31320 states have internal predecessors, (50815), 4150 states have call successors, (4150), 1843 states have call predecessors, (4150), 2283 states have return successors, (6712), 4259 states have call predecessors, (6712), 4132 states have call successors, (6712) [2024-12-02 13:42:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36847 states to 36847 states and 61677 transitions. [2024-12-02 13:42:48,445 INFO L78 Accepts]: Start accepts. Automaton has 36847 states and 61677 transitions. Word has length 503 [2024-12-02 13:42:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:48,445 INFO L471 AbstractCegarLoop]: Abstraction has 36847 states and 61677 transitions. [2024-12-02 13:42:48,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 13:42:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 36847 states and 61677 transitions. [2024-12-02 13:42:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-12-02 13:42:48,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:48,651 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:42:48,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 13:42:48,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:42:48,852 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:48,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash -17779244, now seen corresponding path program 1 times [2024-12-02 13:42:48,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:48,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086370219] [2024-12-02 13:42:48,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 61 proven. 70 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2024-12-02 13:42:49,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:49,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086370219] [2024-12-02 13:42:49,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086370219] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:42:49,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493111888] [2024-12-02 13:42:49,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:42:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:42:49,476 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:42:49,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 13:42:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:50,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 3368 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 13:42:50,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:42:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 528 proven. 25 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-12-02 13:42:50,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:42:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 68 proven. 43 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2024-12-02 13:42:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493111888] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:42:51,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:42:51,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 18 [2024-12-02 13:42:51,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678116877] [2024-12-02 13:42:51,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:42:51,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:42:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:51,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:42:51,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:42:51,059 INFO L87 Difference]: Start difference. First operand 36847 states and 61677 transitions. Second operand has 18 states, 17 states have (on average 24.11764705882353) internal successors, (410), 16 states have internal predecessors, (410), 13 states have call successors, (102), 7 states have call predecessors, (102), 13 states have return successors, (101), 14 states have call predecessors, (101), 13 states have call successors, (101) [2024-12-02 13:43:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:02,685 INFO L93 Difference]: Finished difference Result 118650 states and 207885 transitions. [2024-12-02 13:43:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 13:43:02,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 24.11764705882353) internal successors, (410), 16 states have internal predecessors, (410), 13 states have call successors, (102), 7 states have call predecessors, (102), 13 states have return successors, (101), 14 states have call predecessors, (101), 13 states have call successors, (101) Word has length 513 [2024-12-02 13:43:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:03,166 INFO L225 Difference]: With dead ends: 118650 [2024-12-02 13:43:03,166 INFO L226 Difference]: Without dead ends: 82364 [2024-12-02 13:43:03,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1030 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 901 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=644, Invalid=2662, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 13:43:03,549 INFO L435 NwaCegarLoop]: 689 mSDtfsCounter, 14695 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 12972 mSolverCounterSat, 4809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14695 SdHoareTripleChecker+Valid, 4728 SdHoareTripleChecker+Invalid, 17781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4809 IncrementalHoareTripleChecker+Valid, 12972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:03,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14695 Valid, 4728 Invalid, 17781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4809 Valid, 12972 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-12-02 13:43:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82364 states. [2024-12-02 13:43:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82364 to 69445. [2024-12-02 13:43:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69445 states, 57122 states have (on average 1.663369629914919) internal successors, (95015), 58782 states have internal predecessors, (95015), 7838 states have call successors, (7838), 3554 states have call predecessors, (7838), 4484 states have return successors, (12640), 8200 states have call predecessors, (12640), 7814 states have call successors, (12640) [2024-12-02 13:43:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69445 states to 69445 states and 115493 transitions. [2024-12-02 13:43:06,855 INFO L78 Accepts]: Start accepts. Automaton has 69445 states and 115493 transitions. Word has length 513 [2024-12-02 13:43:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:06,855 INFO L471 AbstractCegarLoop]: Abstraction has 69445 states and 115493 transitions. [2024-12-02 13:43:06,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 24.11764705882353) internal successors, (410), 16 states have internal predecessors, (410), 13 states have call successors, (102), 7 states have call predecessors, (102), 13 states have return successors, (101), 14 states have call predecessors, (101), 13 states have call successors, (101) [2024-12-02 13:43:06,855 INFO L276 IsEmpty]: Start isEmpty. Operand 69445 states and 115493 transitions. [2024-12-02 13:43:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-12-02 13:43:06,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:06,971 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:06,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 13:43:07,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 13:43:07,172 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:07,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:07,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1511041577, now seen corresponding path program 1 times [2024-12-02 13:43:07,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:07,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208607339] [2024-12-02 13:43:07,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:07,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 63 proven. 80 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2024-12-02 13:43:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208607339] [2024-12-02 13:43:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208607339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822788197] [2024-12-02 13:43:07,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:07,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:43:07,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:43:07,487 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:43:07,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 13:43:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:08,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:43:08,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 593 proven. 4 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2024-12-02 13:43:08,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 63 proven. 80 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2024-12-02 13:43:08,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822788197] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:43:08,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:43:08,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-02 13:43:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651409512] [2024-12-02 13:43:08,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:43:08,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:43:08,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:08,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:43:08,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:43:08,794 INFO L87 Difference]: Start difference. First operand 69445 states and 115493 transitions. Second operand has 18 states, 18 states have (on average 23.22222222222222) internal successors, (418), 18 states have internal predecessors, (418), 11 states have call successors, (93), 7 states have call predecessors, (93), 11 states have return successors, (94), 12 states have call predecessors, (94), 11 states have call successors, (94) [2024-12-02 13:43:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:29,245 INFO L93 Difference]: Finished difference Result 279440 states and 502612 transitions. [2024-12-02 13:43:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-12-02 13:43:29,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 23.22222222222222) internal successors, (418), 18 states have internal predecessors, (418), 11 states have call successors, (93), 7 states have call predecessors, (93), 11 states have return successors, (94), 12 states have call predecessors, (94), 11 states have call successors, (94) Word has length 511 [2024-12-02 13:43:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:30,509 INFO L225 Difference]: With dead ends: 279440 [2024-12-02 13:43:30,509 INFO L226 Difference]: Without dead ends: 206224 [2024-12-02 13:43:31,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1038 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2294 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1273, Invalid=5047, Unknown=0, NotChecked=0, Total=6320 [2024-12-02 13:43:31,118 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 13516 mSDsluCounter, 6283 mSDsCounter, 0 mSdLazyCounter, 14086 mSolverCounterSat, 4364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13658 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 18450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4364 IncrementalHoareTripleChecker+Valid, 14086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:31,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13658 Valid, 7186 Invalid, 18450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4364 Valid, 14086 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-12-02 13:43:31,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206224 states. [2024-12-02 13:43:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206224 to 166165. [2024-12-02 13:43:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166165 states, 136938 states have (on average 1.6581080488980415) internal successors, (227058), 140727 states have internal predecessors, (227058), 18981 states have call successors, (18981), 8842 states have call predecessors, (18981), 10245 states have return successors, (29296), 19379 states have call predecessors, (29296), 18951 states have call successors, (29296) [2024-12-02 13:43:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166165 states to 166165 states and 275335 transitions. [2024-12-02 13:43:40,179 INFO L78 Accepts]: Start accepts. Automaton has 166165 states and 275335 transitions. Word has length 511 [2024-12-02 13:43:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:40,179 INFO L471 AbstractCegarLoop]: Abstraction has 166165 states and 275335 transitions. [2024-12-02 13:43:40,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 23.22222222222222) internal successors, (418), 18 states have internal predecessors, (418), 11 states have call successors, (93), 7 states have call predecessors, (93), 11 states have return successors, (94), 12 states have call predecessors, (94), 11 states have call successors, (94) [2024-12-02 13:43:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 166165 states and 275335 transitions. [2024-12-02 13:43:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-12-02 13:43:40,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:40,312 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:40,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 13:43:40,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:43:40,512 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:40,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1175380114, now seen corresponding path program 1 times [2024-12-02 13:43:40,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:40,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202054973] [2024-12-02 13:43:40,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:40,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 59 proven. 38 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2024-12-02 13:43:40,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:40,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202054973] [2024-12-02 13:43:40,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202054973] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:40,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728394187] [2024-12-02 13:43:40,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:40,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:43:40,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:43:40,801 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:43:40,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b51f7c-9863-4d99-94ae-d46e3b5e6d3a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 13:43:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:41,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 3365 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 13:43:41,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 550 proven. 30 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-12-02 13:43:41,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 76 proven. 40 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked. [2024-12-02 13:43:42,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728394187] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:43:42,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:43:42,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 10] total 19 [2024-12-02 13:43:42,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219628077] [2024-12-02 13:43:42,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:43:42,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:43:42,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:42,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:43:42,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:43:42,608 INFO L87 Difference]: Start difference. First operand 166165 states and 275335 transitions. Second operand has 19 states, 18 states have (on average 21.833333333333332) internal successors, (393), 18 states have internal predecessors, (393), 13 states have call successors, (100), 7 states have call predecessors, (100), 11 states have return successors, (98), 13 states have call predecessors, (98), 13 states have call successors, (98)