./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/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_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/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_16f45228-22e2-40a1-b9be-e3479f52a611/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 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:46:25,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:46:25,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:46:25,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:46:25,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:46:25,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:46:25,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:46:25,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:46:25,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:46:25,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:46:25,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:46:25,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:46:25,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:46:25,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:46:25,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:46:25,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:46:25,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:46:25,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:46:25,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:46:25,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:46:25,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:46:25,558 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_16f45228-22e2-40a1-b9be-e3479f52a611/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 -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2024-12-02 07:46:25,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:46:25,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:46:25,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:46:25,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:46:25,794 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:46:25,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2024-12-02 07:46:28,394 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/data/8150c2de2/9ca4f83f85004e4a9489d14126d71c36/FLAGccd6bd9d1 [2024-12-02 07:46:28,678 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:46:28,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2024-12-02 07:46:28,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/data/8150c2de2/9ca4f83f85004e4a9489d14126d71c36/FLAGccd6bd9d1 [2024-12-02 07:46:28,981 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/data/8150c2de2/9ca4f83f85004e4a9489d14126d71c36 [2024-12-02 07:46:28,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:46:28,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:46:28,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:46:28,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:46:28,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:46:28,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:46:28" (1/1) ... [2024-12-02 07:46:28,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c904da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:28, skipping insertion in model container [2024-12-02 07:46:28,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:46:28" (1/1) ... [2024-12-02 07:46:29,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:46:29,306 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2024-12-02 07:46:29,394 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2024-12-02 07:46:29,395 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2024-12-02 07:46:29,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:46:29,418 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:46:29,453 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2024-12-02 07:46:29,497 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2024-12-02 07:46:29,498 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_16f45228-22e2-40a1-b9be-e3479f52a611/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2024-12-02 07:46:29,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:46:29,533 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:46:29,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29 WrapperNode [2024-12-02 07:46:29,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:46:29,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:46:29,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:46:29,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:46:29,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,602 INFO L138 Inliner]: procedures = 176, calls = 320, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1549 [2024-12-02 07:46:29,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:46:29,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:46:29,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:46:29,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:46:29,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,723 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-12-02 07:46:29,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,791 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:46:29,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:46:29,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:46:29,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:46:29,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (1/1) ... [2024-12-02 07:46:29,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:46:29,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:46:29,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:46:29,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 07:46:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 07:46:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 07:46:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 07:46:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:46:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:46:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:46:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:46:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:46:30,043 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:46:30,045 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:46:31,333 INFO L? ?]: Removed 335 outVars from TransFormulas that were not future-live. [2024-12-02 07:46:31,333 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:46:31,350 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:46:31,351 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-12-02 07:46:31,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:46:31 BoogieIcfgContainer [2024-12-02 07:46:31,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:46:31,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:46:31,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:46:31,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:46:31,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:46:28" (1/3) ... [2024-12-02 07:46:31,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ccf5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:46:31, skipping insertion in model container [2024-12-02 07:46:31,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:46:29" (2/3) ... [2024-12-02 07:46:31,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ccf5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:46:31, skipping insertion in model container [2024-12-02 07:46:31,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:46:31" (3/3) ... [2024-12-02 07:46:31,359 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-2.i [2024-12-02 07:46:31,369 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:46:31,370 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-2.i that has 4 procedures, 443 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-12-02 07:46:31,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:46:31,428 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;@237e8d08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:46:31,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:46:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 435 states, 428 states have (on average 1.6191588785046729) internal successors, (693), 430 states have internal predecessors, (693), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 07:46:31,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:31,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:31,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:31,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash 591703179, now seen corresponding path program 1 times [2024-12-02 07:46:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123279042] [2024-12-02 07:46:31,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:31,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:31,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:31,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123279042] [2024-12-02 07:46:31,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123279042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:31,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:31,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:46:31,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708282298] [2024-12-02 07:46:31,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:31,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:46:31,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:31,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:46:31,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:46:31,593 INFO L87 Difference]: Start difference. First operand has 435 states, 428 states have (on average 1.6191588785046729) internal successors, (693), 430 states have internal predecessors, (693), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:31,645 INFO L93 Difference]: Finished difference Result 868 states and 1396 transitions. [2024-12-02 07:46:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:46:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-12-02 07:46:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:31,655 INFO L225 Difference]: With dead ends: 868 [2024-12-02 07:46:31,655 INFO L226 Difference]: Without dead ends: 397 [2024-12-02 07:46:31,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:46:31,661 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:31,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-02 07:46:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-12-02 07:46:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 391 states have (on average 1.4424552429667519) internal successors, (564), 392 states have internal predecessors, (564), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 570 transitions. [2024-12-02 07:46:31,711 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 570 transitions. Word has length 8 [2024-12-02 07:46:31,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:31,711 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 570 transitions. [2024-12-02 07:46:31,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 570 transitions. [2024-12-02 07:46:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 07:46:31,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:31,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:31,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:46:31,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:31,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1735047096, now seen corresponding path program 1 times [2024-12-02 07:46:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130132943] [2024-12-02 07:46:31,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:31,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130132943] [2024-12-02 07:46:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130132943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:31,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:31,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:31,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444928840] [2024-12-02 07:46:31,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:31,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:31,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:31,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:31,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:31,861 INFO L87 Difference]: Start difference. First operand 397 states and 570 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:32,014 INFO L93 Difference]: Finished difference Result 979 states and 1410 transitions. [2024-12-02 07:46:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:46:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-12-02 07:46:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:32,018 INFO L225 Difference]: With dead ends: 979 [2024-12-02 07:46:32,018 INFO L226 Difference]: Without dead ends: 787 [2024-12-02 07:46:32,019 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 07:46:32,020 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 554 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:32,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1737 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-12-02 07:46:32,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 399. [2024-12-02 07:46:32,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 393 states have (on average 1.440203562340967) internal successors, (566), 394 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 572 transitions. [2024-12-02 07:46:32,043 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 572 transitions. Word has length 10 [2024-12-02 07:46:32,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:32,043 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 572 transitions. [2024-12-02 07:46:32,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,044 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 572 transitions. [2024-12-02 07:46:32,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 07:46:32,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:32,046 INFO L218 NwaCegarLoop]: trace histogram [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 07:46:32,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:46:32,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:32,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:32,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1815897567, now seen corresponding path program 1 times [2024-12-02 07:46:32,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:32,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825556629] [2024-12-02 07:46:32,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:32,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:32,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825556629] [2024-12-02 07:46:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825556629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:32,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:32,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:32,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003324130] [2024-12-02 07:46:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:32,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:32,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:32,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:32,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:32,430 INFO L87 Difference]: Start difference. First operand 399 states and 572 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:32,520 INFO L93 Difference]: Finished difference Result 751 states and 1073 transitions. [2024-12-02 07:46:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:46:32,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-12-02 07:46:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:32,523 INFO L225 Difference]: With dead ends: 751 [2024-12-02 07:46:32,523 INFO L226 Difference]: Without dead ends: 356 [2024-12-02 07:46:32,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:46:32,524 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 30 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:32,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1382 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:32,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-12-02 07:46:32,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-12-02 07:46:32,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 350 states have (on average 1.3942857142857144) internal successors, (488), 351 states have internal predecessors, (488), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 494 transitions. [2024-12-02 07:46:32,537 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 494 transitions. Word has length 87 [2024-12-02 07:46:32,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:32,537 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 494 transitions. [2024-12-02 07:46:32,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,537 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 494 transitions. [2024-12-02 07:46:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 07:46:32,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:32,539 INFO L218 NwaCegarLoop]: trace histogram [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 07:46:32,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:46:32,540 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:32,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1229704981, now seen corresponding path program 1 times [2024-12-02 07:46:32,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:32,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865843518] [2024-12-02 07:46:32,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:32,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:32,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:32,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865843518] [2024-12-02 07:46:32,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865843518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:32,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:32,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114370530] [2024-12-02 07:46:32,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:32,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:32,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:32,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:32,738 INFO L87 Difference]: Start difference. First operand 356 states and 494 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:32,863 INFO L93 Difference]: Finished difference Result 964 states and 1349 transitions. [2024-12-02 07:46:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:32,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-12-02 07:46:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:32,866 INFO L225 Difference]: With dead ends: 964 [2024-12-02 07:46:32,866 INFO L226 Difference]: Without dead ends: 612 [2024-12-02 07:46:32,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:32,868 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 299 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:32,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1137 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-12-02 07:46:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 605. [2024-12-02 07:46:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 599 states have (on average 1.4123539232053421) internal successors, (846), 600 states have internal predecessors, (846), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 852 transitions. [2024-12-02 07:46:32,890 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 852 transitions. Word has length 87 [2024-12-02 07:46:32,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:32,890 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 852 transitions. [2024-12-02 07:46:32,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 852 transitions. [2024-12-02 07:46:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 07:46:32,893 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:32,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:32,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:46:32,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:32,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:32,894 INFO L85 PathProgramCache]: Analyzing trace with hash -946256560, now seen corresponding path program 1 times [2024-12-02 07:46:32,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:32,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995910367] [2024-12-02 07:46:32,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:32,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:33,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:33,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995910367] [2024-12-02 07:46:33,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995910367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:33,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:33,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:33,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942211056] [2024-12-02 07:46:33,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:33,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:33,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:33,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:33,175 INFO L87 Difference]: Start difference. First operand 605 states and 852 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:33,224 INFO L93 Difference]: Finished difference Result 1175 states and 1665 transitions. [2024-12-02 07:46:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-12-02 07:46:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:33,227 INFO L225 Difference]: With dead ends: 1175 [2024-12-02 07:46:33,227 INFO L226 Difference]: Without dead ends: 605 [2024-12-02 07:46:33,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:33,229 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 0 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:33,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 938 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-12-02 07:46:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-12-02 07:46:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 599 states have (on average 1.4023372287145242) internal successors, (840), 600 states have internal predecessors, (840), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:33,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 846 transitions. [2024-12-02 07:46:33,252 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 846 transitions. Word has length 102 [2024-12-02 07:46:33,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:33,252 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 846 transitions. [2024-12-02 07:46:33,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 846 transitions. [2024-12-02 07:46:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 07:46:33,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:33,254 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:33,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:46:33,254 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:33,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:33,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1440252946, now seen corresponding path program 1 times [2024-12-02 07:46:33,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:33,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501679210] [2024-12-02 07:46:33,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:33,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 07:46:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:33,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501679210] [2024-12-02 07:46:33,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501679210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:33,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:33,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301482897] [2024-12-02 07:46:33,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:33,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:33,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:33,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:33,672 INFO L87 Difference]: Start difference. First operand 605 states and 846 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:33,773 INFO L93 Difference]: Finished difference Result 891 states and 1248 transitions. [2024-12-02 07:46:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:46:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-12-02 07:46:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:33,776 INFO L225 Difference]: With dead ends: 891 [2024-12-02 07:46:33,777 INFO L226 Difference]: Without dead ends: 887 [2024-12-02 07:46:33,777 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 07:46:33,777 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 463 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:33,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1395 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-12-02 07:46:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 607. [2024-12-02 07:46:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 601 states have (on average 1.4009983361064893) internal successors, (842), 602 states have internal predecessors, (842), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 848 transitions. [2024-12-02 07:46:33,793 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 848 transitions. Word has length 102 [2024-12-02 07:46:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:33,793 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 848 transitions. [2024-12-02 07:46:33,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 848 transitions. [2024-12-02 07:46:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 07:46:33,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:33,795 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:33,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:46:33,795 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:33,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:33,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1658774407, now seen corresponding path program 1 times [2024-12-02 07:46:33,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:33,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476060509] [2024-12-02 07:46:33,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:33,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 07:46:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476060509] [2024-12-02 07:46:34,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476060509] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:34,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:34,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:34,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524677375] [2024-12-02 07:46:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:34,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:34,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:34,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:34,150 INFO L87 Difference]: Start difference. First operand 607 states and 848 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:34,227 INFO L93 Difference]: Finished difference Result 873 states and 1229 transitions. [2024-12-02 07:46:34,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:46:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 156 [2024-12-02 07:46:34,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:34,230 INFO L225 Difference]: With dead ends: 873 [2024-12-02 07:46:34,230 INFO L226 Difference]: Without dead ends: 521 [2024-12-02 07:46:34,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:46:34,231 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 36 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:34,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1126 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-12-02 07:46:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-12-02 07:46:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 515 states have (on average 1.3320388349514563) internal successors, (686), 516 states have internal predecessors, (686), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 692 transitions. [2024-12-02 07:46:34,248 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 692 transitions. Word has length 156 [2024-12-02 07:46:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:34,248 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 692 transitions. [2024-12-02 07:46:34,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 692 transitions. [2024-12-02 07:46:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 07:46:34,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:34,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:34,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:46:34,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:34,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1046829811, now seen corresponding path program 1 times [2024-12-02 07:46:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696047387] [2024-12-02 07:46:34,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 07:46:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696047387] [2024-12-02 07:46:34,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696047387] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:34,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:34,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:34,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718356574] [2024-12-02 07:46:34,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:34,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:34,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:34,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:34,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:34,503 INFO L87 Difference]: Start difference. First operand 521 states and 692 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:34,558 INFO L93 Difference]: Finished difference Result 775 states and 1039 transitions. [2024-12-02 07:46:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:46:34,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 156 [2024-12-02 07:46:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:34,561 INFO L225 Difference]: With dead ends: 775 [2024-12-02 07:46:34,561 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 07:46:34,561 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 07:46:34,562 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 9 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:34,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1127 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 07:46:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 07:46:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 503 states have (on average 1.3240556660039762) internal successors, (666), 504 states have internal predecessors, (666), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 672 transitions. [2024-12-02 07:46:34,578 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 672 transitions. Word has length 156 [2024-12-02 07:46:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:34,578 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 672 transitions. [2024-12-02 07:46:34,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 672 transitions. [2024-12-02 07:46:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 07:46:34,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:34,580 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:34,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:46:34,580 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:34,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 144812283, now seen corresponding path program 1 times [2024-12-02 07:46:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:34,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363619403] [2024-12-02 07:46:34,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:34,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:34,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363619403] [2024-12-02 07:46:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363619403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:46:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011723788] [2024-12-02 07:46:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:34,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:46:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:34,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:46:34,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:46:34,787 INFO L87 Difference]: Start difference. First operand 509 states and 672 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:35,218 INFO L93 Difference]: Finished difference Result 1266 states and 1676 transitions. [2024-12-02 07:46:35,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:46:35,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 156 [2024-12-02 07:46:35,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:35,222 INFO L225 Difference]: With dead ends: 1266 [2024-12-02 07:46:35,222 INFO L226 Difference]: Without dead ends: 849 [2024-12-02 07:46:35,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:46:35,223 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 1154 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:35,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1360 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:46:35,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-12-02 07:46:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 643. [2024-12-02 07:46:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 637 states have (on average 1.3281004709576139) internal successors, (846), 638 states have internal predecessors, (846), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:46:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 852 transitions. [2024-12-02 07:46:35,250 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 852 transitions. Word has length 156 [2024-12-02 07:46:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:35,250 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 852 transitions. [2024-12-02 07:46:35,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 852 transitions. [2024-12-02 07:46:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 07:46:35,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:35,252 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:35,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:46:35,252 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:35,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash -478229613, now seen corresponding path program 1 times [2024-12-02 07:46:35,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:35,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056495362] [2024-12-02 07:46:35,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:35,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:35,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056495362] [2024-12-02 07:46:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056495362] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:46:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467109171] [2024-12-02 07:46:35,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:35,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:46:35,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:46:35,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:46:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:46:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:36,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:46:36,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:36,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:46:36,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:36,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:46:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:36,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:46:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:36,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467109171] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:46:36,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:46:36,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-12-02 07:46:36,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849885888] [2024-12-02 07:46:36,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:46:36,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:46:36,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:36,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:46:36,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:46:36,904 INFO L87 Difference]: Start difference. First operand 643 states and 852 transitions. Second operand has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:37,155 INFO L93 Difference]: Finished difference Result 2859 states and 3806 transitions. [2024-12-02 07:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:46:37,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 166 [2024-12-02 07:46:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:37,162 INFO L225 Difference]: With dead ends: 2859 [2024-12-02 07:46:37,162 INFO L226 Difference]: Without dead ends: 2468 [2024-12-02 07:46:37,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 325 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:46:37,163 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 2560 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:37,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2566 Valid, 3128 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-12-02 07:46:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 998. [2024-12-02 07:46:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 988 states have (on average 1.3208502024291497) internal successors, (1305), 989 states have internal predecessors, (1305), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 07:46:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1317 transitions. [2024-12-02 07:46:37,200 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1317 transitions. Word has length 166 [2024-12-02 07:46:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:37,200 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1317 transitions. [2024-12-02 07:46:37,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1317 transitions. [2024-12-02 07:46:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-12-02 07:46:37,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:37,205 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-12-02 07:46:37,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:46:37,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 07:46:37,406 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:37,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:37,406 INFO L85 PathProgramCache]: Analyzing trace with hash 6974640, now seen corresponding path program 1 times [2024-12-02 07:46:37,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457945698] [2024-12-02 07:46:37,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:40,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:40,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457945698] [2024-12-02 07:46:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457945698] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:46:40,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461771106] [2024-12-02 07:46:40,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:40,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:46:40,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:46:40,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:46:40,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:46:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:40,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:46:40,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:40,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:46:41,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:41,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:41,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:41,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:41,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:46:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:41,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:46:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461771106] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:46:42,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:46:42,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 8] total 19 [2024-12-02 07:46:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202872126] [2024-12-02 07:46:42,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:46:42,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:46:42,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:42,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:46:42,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=212, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:46:42,091 INFO L87 Difference]: Start difference. First operand 998 states and 1317 transitions. Second operand has 19 states, 19 states have (on average 37.68421052631579) internal successors, (716), 19 states have internal predecessors, (716), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:42,773 INFO L93 Difference]: Finished difference Result 6069 states and 8087 transitions. [2024-12-02 07:46:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 07:46:42,774 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 37.68421052631579) internal successors, (716), 19 states have internal predecessors, (716), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 397 [2024-12-02 07:46:42,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:42,792 INFO L225 Difference]: With dead ends: 6069 [2024-12-02 07:46:42,792 INFO L226 Difference]: Without dead ends: 5678 [2024-12-02 07:46:42,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 786 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=426, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:46:42,794 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 5620 mSDsluCounter, 4785 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5632 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:42,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5632 Valid, 5214 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:46:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2024-12-02 07:46:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 1880. [2024-12-02 07:46:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1864 states have (on average 1.3149141630901287) internal successors, (2451), 1865 states have internal predecessors, (2451), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 07:46:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2475 transitions. [2024-12-02 07:46:42,902 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2475 transitions. Word has length 397 [2024-12-02 07:46:42,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:42,903 INFO L471 AbstractCegarLoop]: Abstraction has 1880 states and 2475 transitions. [2024-12-02 07:46:42,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 37.68421052631579) internal successors, (716), 19 states have internal predecessors, (716), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2475 transitions. [2024-12-02 07:46:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2024-12-02 07:46:42,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:42,928 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-12-02 07:46:42,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:46:43,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 07:46:43,129 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:43,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1172029616, now seen corresponding path program 2 times [2024-12-02 07:46:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:43,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265649257] [2024-12-02 07:46:43,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:46:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:43,420 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:46:43,420 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:46:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-12-02 07:46:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265649257] [2024-12-02 07:46:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265649257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:43,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:43,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:43,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099218235] [2024-12-02 07:46:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:43,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:46:43,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:43,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:46:43,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:46:43,608 INFO L87 Difference]: Start difference. First operand 1880 states and 2475 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:43,968 INFO L93 Difference]: Finished difference Result 2283 states and 3019 transitions. [2024-12-02 07:46:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:46:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 859 [2024-12-02 07:46:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:43,976 INFO L225 Difference]: With dead ends: 2283 [2024-12-02 07:46:43,976 INFO L226 Difference]: Without dead ends: 1895 [2024-12-02 07:46:43,978 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 07:46:43,978 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 10 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:43,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1622 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:46:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-12-02 07:46:44,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1886. [2024-12-02 07:46:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1870 states have (on average 1.313903743315508) internal successors, (2457), 1871 states have internal predecessors, (2457), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 07:46:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2481 transitions. [2024-12-02 07:46:44,053 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2481 transitions. Word has length 859 [2024-12-02 07:46:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:44,054 INFO L471 AbstractCegarLoop]: Abstraction has 1886 states and 2481 transitions. [2024-12-02 07:46:44,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2481 transitions. [2024-12-02 07:46:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2024-12-02 07:46:44,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:44,084 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-12-02 07:46:44,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:46:44,084 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:44,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:44,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1932766165, now seen corresponding path program 1 times [2024-12-02 07:46:44,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:44,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031010399] [2024-12-02 07:46:44,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:53,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031010399] [2024-12-02 07:46:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031010399] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:46:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937091054] [2024-12-02 07:46:53,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:53,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:46:53,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:46:53,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:46:53,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:46:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:54,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 4159 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 07:46:54,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:54,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:46:54,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:54,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:54,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:54,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:54,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:46:55,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:46:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:55,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:46:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:46:56,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937091054] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:46:56,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:46:56,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 14] total 32 [2024-12-02 07:46:56,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276704501] [2024-12-02 07:46:56,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:46:56,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 07:46:56,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:56,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 07:46:56,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=581, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:46:56,493 INFO L87 Difference]: Start difference. First operand 1886 states and 2481 transitions. Second operand has 32 states, 32 states have (on average 51.34375) internal successors, (1643), 32 states have internal predecessors, (1643), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:58,209 INFO L93 Difference]: Finished difference Result 12629 states and 16789 transitions. [2024-12-02 07:46:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 07:46:58,210 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 51.34375) internal successors, (1643), 32 states have internal predecessors, (1643), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 860 [2024-12-02 07:46:58,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:58,240 INFO L225 Difference]: With dead ends: 12629 [2024-12-02 07:46:58,241 INFO L226 Difference]: Without dead ends: 12232 [2024-12-02 07:46:58,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1758 GetRequests, 1707 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=872, Invalid=1578, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 07:46:58,245 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 15807 mSDsluCounter, 10184 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15831 SdHoareTripleChecker+Valid, 10613 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:58,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15831 Valid, 10613 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:46:58,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2024-12-02 07:46:58,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 3650. [2024-12-02 07:46:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3622 states have (on average 1.3111540585311983) internal successors, (4749), 3623 states have internal predecessors, (4749), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 07:46:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 4797 transitions. [2024-12-02 07:46:58,475 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 4797 transitions. Word has length 860 [2024-12-02 07:46:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:58,477 INFO L471 AbstractCegarLoop]: Abstraction has 3650 states and 4797 transitions. [2024-12-02 07:46:58,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 51.34375) internal successors, (1643), 32 states have internal predecessors, (1643), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:46:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 4797 transitions. [2024-12-02 07:46:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1785 [2024-12-02 07:46:58,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:58,505 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-12-02 07:46:58,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:46:58,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 07:46:58,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:58,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2128437525, now seen corresponding path program 2 times [2024-12-02 07:46:58,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:58,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321632271] [2024-12-02 07:46:58,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:46:58,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:59,279 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:46:59,280 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:46:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-12-02 07:46:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321632271] [2024-12-02 07:46:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321632271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:59,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933491536] [2024-12-02 07:46:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:59,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:59,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:59,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:59,391 INFO L87 Difference]: Start difference. First operand 3650 states and 4797 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:59,551 INFO L93 Difference]: Finished difference Result 4044 states and 5323 transitions. [2024-12-02 07:46:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:46:59,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1784 [2024-12-02 07:46:59,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:59,562 INFO L225 Difference]: With dead ends: 4044 [2024-12-02 07:46:59,562 INFO L226 Difference]: Without dead ends: 3650 [2024-12-02 07:46:59,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 07:46:59,564 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 13 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:59,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1039 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:46:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2024-12-02 07:46:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 3650. [2024-12-02 07:46:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3622 states have (on average 1.3103257868580895) internal successors, (4746), 3623 states have internal predecessors, (4746), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 07:46:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 4794 transitions. [2024-12-02 07:46:59,690 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 4794 transitions. Word has length 1784 [2024-12-02 07:46:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:59,692 INFO L471 AbstractCegarLoop]: Abstraction has 3650 states and 4794 transitions. [2024-12-02 07:46:59,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:46:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 4794 transitions. [2024-12-02 07:46:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1785 [2024-12-02 07:46:59,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:59,718 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-12-02 07:46:59,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:46:59,718 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:59,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:59,719 INFO L85 PathProgramCache]: Analyzing trace with hash -170617257, now seen corresponding path program 1 times [2024-12-02 07:46:59,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:59,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707481670] [2024-12-02 07:46:59,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:59,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-12-02 07:47:04,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:04,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707481670] [2024-12-02 07:47:04,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707481670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:04,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:04,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:47:04,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364292264] [2024-12-02 07:47:04,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:04,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:47:04,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:04,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:47:04,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:04,070 INFO L87 Difference]: Start difference. First operand 3650 states and 4794 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:04,415 INFO L93 Difference]: Finished difference Result 4059 states and 5341 transitions. [2024-12-02 07:47:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:47:04,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1784 [2024-12-02 07:47:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:04,424 INFO L225 Difference]: With dead ends: 4059 [2024-12-02 07:47:04,424 INFO L226 Difference]: Without dead ends: 3665 [2024-12-02 07:47:04,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 07:47:04,426 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 10 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:04,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1946 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:47:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2024-12-02 07:47:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3662. [2024-12-02 07:47:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 3634 states have (on average 1.3101265822784811) internal successors, (4761), 3635 states have internal predecessors, (4761), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 07:47:04,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 4809 transitions. [2024-12-02 07:47:04,608 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 4809 transitions. Word has length 1784 [2024-12-02 07:47:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:04,610 INFO L471 AbstractCegarLoop]: Abstraction has 3662 states and 4809 transitions. [2024-12-02 07:47:04,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 4809 transitions. [2024-12-02 07:47:04,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1786 [2024-12-02 07:47:04,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:04,672 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-12-02 07:47:04,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:47:04,672 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:04,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1835090891, now seen corresponding path program 1 times [2024-12-02 07:47:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:04,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332742899] [2024-12-02 07:47:04,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:04,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:08,765 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-12-02 07:47:08,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:08,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332742899] [2024-12-02 07:47:08,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332742899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:08,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:08,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:47:08,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519606417] [2024-12-02 07:47:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:08,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:47:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:08,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:47:08,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:08,767 INFO L87 Difference]: Start difference. First operand 3662 states and 4809 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:09,027 INFO L93 Difference]: Finished difference Result 4077 states and 5362 transitions. [2024-12-02 07:47:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:47:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1785 [2024-12-02 07:47:09,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:09,039 INFO L225 Difference]: With dead ends: 4077 [2024-12-02 07:47:09,039 INFO L226 Difference]: Without dead ends: 3671 [2024-12-02 07:47:09,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:09,041 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 4 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:09,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1349 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:47:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2024-12-02 07:47:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3671. [2024-12-02 07:47:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3671 states, 3643 states have (on average 1.3093604172385396) internal successors, (4770), 3644 states have internal predecessors, (4770), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 07:47:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 4818 transitions. [2024-12-02 07:47:09,181 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 4818 transitions. Word has length 1785 [2024-12-02 07:47:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:09,182 INFO L471 AbstractCegarLoop]: Abstraction has 3671 states and 4818 transitions. [2024-12-02 07:47:09,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 4818 transitions. [2024-12-02 07:47:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1786 [2024-12-02 07:47:09,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:09,212 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-12-02 07:47:09,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:47:09,212 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:09,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2059814948, now seen corresponding path program 1 times [2024-12-02 07:47:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84885317] [2024-12-02 07:47:09,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-12-02 07:47:14,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84885317] [2024-12-02 07:47:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84885317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:14,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:47:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463040933] [2024-12-02 07:47:14,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:14,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:47:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:14,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:47:14,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:47:14,722 INFO L87 Difference]: Start difference. First operand 3671 states and 4818 transitions. Second operand has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:15,258 INFO L93 Difference]: Finished difference Result 4125 states and 5428 transitions. [2024-12-02 07:47:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:47:15,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1785 [2024-12-02 07:47:15,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:15,270 INFO L225 Difference]: With dead ends: 4125 [2024-12-02 07:47:15,270 INFO L226 Difference]: Without dead ends: 3710 [2024-12-02 07:47:15,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:47:15,272 INFO L435 NwaCegarLoop]: 378 mSDtfsCounter, 30 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:15,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 2641 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:47:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2024-12-02 07:47:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3701. [2024-12-02 07:47:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 3673 states have (on average 1.3101007350939287) internal successors, (4812), 3674 states have internal predecessors, (4812), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 07:47:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 4860 transitions. [2024-12-02 07:47:15,376 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 4860 transitions. Word has length 1785 [2024-12-02 07:47:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:15,378 INFO L471 AbstractCegarLoop]: Abstraction has 3701 states and 4860 transitions. [2024-12-02 07:47:15,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:47:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 4860 transitions. [2024-12-02 07:47:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1786 [2024-12-02 07:47:15,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:15,440 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-12-02 07:47:15,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:47:15,440 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:15,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:15,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1642072331, now seen corresponding path program 1 times [2024-12-02 07:47:15,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280719678] [2024-12-02 07:47:15,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:15,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 17789 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:47:59,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:59,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280719678] [2024-12-02 07:47:59,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280719678] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:59,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447384769] [2024-12-02 07:47:59,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:59,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:59,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:59,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:59,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:48:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:01,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 8684 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 07:48:01,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:01,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:48:02,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:02,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:48:03,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:48:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 17789 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:48:03,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 17789 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:48:06,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447384769] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:06,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:06,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27, 26] total 56 [2024-12-02 07:48:06,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446517443] [2024-12-02 07:48:06,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:06,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 07:48:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:06,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 07:48:06,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=1697, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 07:48:06,495 INFO L87 Difference]: Start difference. First operand 3701 states and 4860 transitions. Second operand has 56 states, 56 states have (on average 62.357142857142854) internal successors, (3492), 56 states have internal predecessors, (3492), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:48:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:15,141 INFO L93 Difference]: Finished difference Result 28027 states and 37039 transitions. [2024-12-02 07:48:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-02 07:48:15,142 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 62.357142857142854) internal successors, (3492), 56 states have internal predecessors, (3492), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 1785 [2024-12-02 07:48:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:15,198 INFO L225 Difference]: With dead ends: 28027 [2024-12-02 07:48:15,198 INFO L226 Difference]: Without dead ends: 27579 [2024-12-02 07:48:15,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3644 GetRequests, 3545 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3464, Invalid=6042, Unknown=0, NotChecked=0, Total=9506 [2024-12-02 07:48:15,203 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 45736 mSDsluCounter, 19721 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45784 SdHoareTripleChecker+Valid, 20149 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:15,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45784 Valid, 20149 Invalid, 883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [197 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:48:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27579 states. [2024-12-02 07:48:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27579 to 7229. [2024-12-02 07:48:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7229 states, 7177 states have (on average 1.309182109516511) internal successors, (9396), 7178 states have internal predecessors, (9396), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 07:48:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 9492 transitions. [2024-12-02 07:48:15,417 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 9492 transitions. Word has length 1785 [2024-12-02 07:48:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:15,418 INFO L471 AbstractCegarLoop]: Abstraction has 7229 states and 9492 transitions. [2024-12-02 07:48:15,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 62.357142857142854) internal successors, (3492), 56 states have internal predecessors, (3492), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:48:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 9492 transitions. [2024-12-02 07:48:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3634 [2024-12-02 07:48:15,559 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:15,560 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 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] [2024-12-02 07:48:15,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:48:15,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 07:48:15,761 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:15,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1374482805, now seen corresponding path program 2 times [2024-12-02 07:48:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:15,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3371981] [2024-12-02 07:48:15,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:48:15,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:16,725 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:48:16,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:48:16,834 INFO L134 CoverageAnalysis]: Checked inductivity of 79701 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79701 trivial. 0 not checked. [2024-12-02 07:48:16,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:16,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3371981] [2024-12-02 07:48:16,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3371981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:16,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791100985] [2024-12-02 07:48:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:16,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:16,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:16,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:16,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:16,836 INFO L87 Difference]: Start difference. First operand 7229 states and 9492 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:48:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:17,227 INFO L93 Difference]: Finished difference Result 7692 states and 10111 transitions. [2024-12-02 07:48:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:17,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 3633 [2024-12-02 07:48:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:17,237 INFO L225 Difference]: With dead ends: 7692 [2024-12-02 07:48:17,237 INFO L226 Difference]: Without dead ends: 7247 [2024-12-02 07:48:17,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:17,239 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 7 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:17,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1643 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:48:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7247 states. [2024-12-02 07:48:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7247 to 7247. [2024-12-02 07:48:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7247 states, 7195 states have (on average 1.308408617095205) internal successors, (9414), 7196 states have internal predecessors, (9414), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 07:48:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7247 states to 7247 states and 9510 transitions. [2024-12-02 07:48:17,381 INFO L78 Accepts]: Start accepts. Automaton has 7247 states and 9510 transitions. Word has length 3633 [2024-12-02 07:48:17,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:17,383 INFO L471 AbstractCegarLoop]: Abstraction has 7247 states and 9510 transitions. [2024-12-02 07:48:17,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:48:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7247 states and 9510 transitions. [2024-12-02 07:48:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3635 [2024-12-02 07:48:17,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:17,462 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 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] [2024-12-02 07:48:17,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:48:17,462 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:17,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:17,464 INFO L85 PathProgramCache]: Analyzing trace with hash -780434578, now seen corresponding path program 1 times [2024-12-02 07:48:17,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:17,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151905585] [2024-12-02 07:48:17,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:17,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 79701 backedges. 0 proven. 79697 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:51:41,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151905585] [2024-12-02 07:51:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151905585] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670540121] [2024-12-02 07:51:41,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:41,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:41,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:41,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:51:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:51:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:46,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 17730 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-12-02 07:51:46,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:51:46,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:51:46,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:47,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:48,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:49,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:51:50,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:51:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 79701 backedges. 0 proven. 79697 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:51:50,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:51:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 79701 backedges. 0 proven. 79697 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:51:57,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670540121] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:51:57,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:51:57,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 51, 50] total 105 [2024-12-02 07:51:57,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023418052] [2024-12-02 07:51:57,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:51:57,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-12-02 07:51:57,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:57,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-12-02 07:51:57,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5131, Invalid=5789, Unknown=0, NotChecked=0, Total=10920 [2024-12-02 07:51:57,355 INFO L87 Difference]: Start difference. First operand 7247 states and 9510 transitions. Second operand has 105 states, 105 states have (on average 68.48571428571428) internal successors, (7191), 105 states have internal predecessors, (7191), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:53:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:09,240 INFO L93 Difference]: Finished difference Result 58159 states and 76315 transitions. [2024-12-02 07:53:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2024-12-02 07:53:09,243 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 68.48571428571428) internal successors, (7191), 105 states have internal predecessors, (7191), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 3634 [2024-12-02 07:53:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:09,307 INFO L225 Difference]: With dead ends: 58159 [2024-12-02 07:53:09,307 INFO L226 Difference]: Without dead ends: 57693 [2024-12-02 07:53:09,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7415 GetRequests, 7220 SyntacticMatches, 3 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8173 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=13832, Invalid=23610, Unknown=0, NotChecked=0, Total=37442 [2024-12-02 07:53:09,322 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 120227 mSDsluCounter, 38780 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120323 SdHoareTripleChecker+Valid, 39208 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:09,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120323 Valid, 39208 Invalid, 1793 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [516 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:53:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57693 states. [2024-12-02 07:53:10,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57693 to 14303. [2024-12-02 07:53:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14303 states, 14203 states have (on average 1.3083151446877421) internal successors, (18582), 14204 states have internal predecessors, (18582), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:53:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14303 states to 14303 states and 18774 transitions. [2024-12-02 07:53:10,051 INFO L78 Accepts]: Start accepts. Automaton has 14303 states and 18774 transitions. Word has length 3634 [2024-12-02 07:53:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:10,052 INFO L471 AbstractCegarLoop]: Abstraction has 14303 states and 18774 transitions. [2024-12-02 07:53:10,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 68.48571428571428) internal successors, (7191), 105 states have internal predecessors, (7191), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 07:53:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 14303 states and 18774 transitions. [2024-12-02 07:53:10,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7331 [2024-12-02 07:53:10,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:10,321 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 93, 93, 93, 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] [2024-12-02 07:53:10,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 07:53:10,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f45228-22e2-40a1-b9be-e3479f52a611/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:10,522 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:10,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1815391854, now seen corresponding path program 2 times [2024-12-02 07:53:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326601104] [2024-12-02 07:53:10,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:53:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:12,546 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:53:12,546 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:53:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 336573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336573 trivial. 0 not checked. [2024-12-02 07:53:27,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:27,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326601104] [2024-12-02 07:53:27,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326601104] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:27,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:27,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:53:27,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162125485] [2024-12-02 07:53:27,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:27,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:53:27,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:27,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:53:27,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:53:27,475 INFO L87 Difference]: Start difference. First operand 14303 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 17 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:53:30,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:34,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:39,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:43,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:47,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:51,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:55,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:53:59,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:03,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:07,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:11,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:15,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:19,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:23,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:27,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:31,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:35,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:39,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:54:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:47,765 INFO L93 Difference]: Finished difference Result 14923 states and 19616 transitions. [2024-12-02 07:54:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 07:54:47,765 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 17 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 7330 [2024-12-02 07:54:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:47,781 INFO L225 Difference]: With dead ends: 14923 [2024-12-02 07:54:47,782 INFO L226 Difference]: Without dead ends: 14460 [2024-12-02 07:54:47,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:54:47,786 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 105 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 11 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:47,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 4493 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1263 Invalid, 17 Unknown, 0 Unchecked, 75.8s Time] [2024-12-02 07:54:47,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14460 states. [2024-12-02 07:54:48,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14460 to 14339. [2024-12-02 07:54:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 14239 states have (on average 1.3085890863122411) internal successors, (18633), 14240 states have internal predecessors, (18633), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:54:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 18825 transitions. [2024-12-02 07:54:48,188 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 18825 transitions. Word has length 7330 [2024-12-02 07:54:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:48,191 INFO L471 AbstractCegarLoop]: Abstraction has 14339 states and 18825 transitions. [2024-12-02 07:54:48,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 17 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:54:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 18825 transitions. [2024-12-02 07:54:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7332 [2024-12-02 07:54:48,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:48,400 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 93, 93, 93, 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] [2024-12-02 07:54:48,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:54:48,400 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:48,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1132073409, now seen corresponding path program 1 times [2024-12-02 07:54:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:48,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641964009] [2024-12-02 07:54:48,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 336573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336573 trivial. 0 not checked. [2024-12-02 07:55:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641964009] [2024-12-02 07:55:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641964009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:40,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:40,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:55:40,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933539002] [2024-12-02 07:55:40,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:40,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:55:40,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:40,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:55:40,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:40,686 INFO L87 Difference]: Start difference. First operand 14339 states and 18825 transitions. Second operand has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:55:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:41,386 INFO L93 Difference]: Finished difference Result 14868 states and 19525 transitions. [2024-12-02 07:55:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:55:41,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 7331 [2024-12-02 07:55:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:41,402 INFO L225 Difference]: With dead ends: 14868 [2024-12-02 07:55:41,402 INFO L226 Difference]: Without dead ends: 14369 [2024-12-02 07:55:41,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:41,410 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 16 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:41,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2369 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14369 states. [2024-12-02 07:55:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14369 to 14348. [2024-12-02 07:55:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14348 states, 14248 states have (on average 1.3086047164514318) internal successors, (18645), 14249 states have internal predecessors, (18645), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:55:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14348 states to 14348 states and 18837 transitions. [2024-12-02 07:55:41,812 INFO L78 Accepts]: Start accepts. Automaton has 14348 states and 18837 transitions. Word has length 7331 [2024-12-02 07:55:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:41,815 INFO L471 AbstractCegarLoop]: Abstraction has 14348 states and 18837 transitions. [2024-12-02 07:55:41,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 07:55:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 14348 states and 18837 transitions. [2024-12-02 07:55:42,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7332 [2024-12-02 07:55:42,053 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:42,054 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 93, 93, 93, 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] [2024-12-02 07:55:42,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:55:42,055 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:42,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1621805011, now seen corresponding path program 1 times [2024-12-02 07:55:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:42,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558408881] [2024-12-02 07:55:42,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat