./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:06,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:06,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:13:06,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:06,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:06,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:06,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:06,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:06,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:13:06,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:13:06,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:06,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:06,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:06,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:06,702 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:06,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:06,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:06,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:06,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:06,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:06,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:06,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:06,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:06,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:06,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:06,721 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:13:06,722 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:06,722 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:06,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:06,723 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:06,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:06,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:06,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:13:06,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:06,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:06,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:06,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:06,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:06,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:06,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:06,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:06,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:06,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:06,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:06,734 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-10-31 22:13:07,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:07,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:07,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:07,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:07,114 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:07,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i Unable to find full path for "g++" [2024-10-31 22:13:09,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:09,753 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:09,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-31 22:13:09,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/data/88634cb49/42af18205eef494dbd69eaebf982c14f/FLAG517c48e25 [2024-10-31 22:13:10,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/data/88634cb49/42af18205eef494dbd69eaebf982c14f [2024-10-31 22:13:10,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:10,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:10,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:10,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:10,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:10,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed0ac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10, skipping insertion in model container [2024-10-31 22:13:10,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:10,673 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,673 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,674 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,674 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:10,741 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:10,786 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,786 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,787 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,787 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:13:10,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:10,879 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:10,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10 WrapperNode [2024-10-31 22:13:10,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:10,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:10,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:10,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:10,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,943 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 332 [2024-10-31 22:13:10,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:10,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:10,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:10,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:10,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,990 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 101, 2]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 80, 0]. The 13 writes are split as follows [0, 0, 12, 1]. [2024-10-31 22:13:10,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:10,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:11,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:11,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:11,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:11,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (1/1) ... [2024-10-31 22:13:11,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:11,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:11,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:13:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:13:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:13:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:13:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:13:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:13:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:13:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:13:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:13:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:11,129 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:13:11,327 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:11,329 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:12,032 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:13:12,032 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:13,144 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:13,145 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-31 22:13:13,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:13 BoogieIcfgContainer [2024-10-31 22:13:13,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:13,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:13,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:13,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:13,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:10" (1/3) ... [2024-10-31 22:13:13,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736aebb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:13, skipping insertion in model container [2024-10-31 22:13:13,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:10" (2/3) ... [2024-10-31 22:13:13,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736aebb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:13, skipping insertion in model container [2024-10-31 22:13:13,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:13" (3/3) ... [2024-10-31 22:13:13,160 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-10-31 22:13:13,183 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:13,183 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-31 22:13:13,184 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:13:13,268 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:13:13,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2024-10-31 22:13:13,383 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2024-10-31 22:13:13,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:13:13,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 16/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-10-31 22:13:13,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2024-10-31 22:13:13,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2024-10-31 22:13:13,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:13,421 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;@6c0783cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:13,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-31 22:13:13,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:13,433 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-10-31 22:13:13,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:13,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:13,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:13:13,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:13,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 26693809, now seen corresponding path program 1 times [2024-10-31 22:13:13,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:13,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232359235] [2024-10-31 22:13:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:13:13,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440134923] [2024-10-31 22:13:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:13,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:13,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:13,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:13,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:13:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:13,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:13:13,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:13,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:13:13,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:13,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232359235] [2024-10-31 22:13:13,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:13:13,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440134923] [2024-10-31 22:13:13,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440134923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:13,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:13,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:13,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521082399] [2024-10-31 22:13:13,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:13,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:13,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:13,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:14,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-31 22:13:14,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-10-31 22:13:14,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:14,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-31 22:13:14,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:14,503 INFO L124 PetriNetUnfolderBase]: 126/413 cut-off events. [2024-10-31 22:13:14,506 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:13:14,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 413 events. 126/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1888 event pairs, 105 based on Foata normal form. 37/371 useless extension candidates. Maximal degree in co-relation 620. Up to 264 conditions per place. [2024-10-31 22:13:14,512 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 42 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-10-31 22:13:14,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 257 flow [2024-10-31 22:13:14,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-10-31 22:13:14,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-10-31 22:13:14,532 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 168 transitions. [2024-10-31 22:13:14,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 257 flow [2024-10-31 22:13:14,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:13:14,542 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2024-10-31 22:13:14,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-10-31 22:13:14,552 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2024-10-31 22:13:14,553 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2024-10-31 22:13:14,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-10-31 22:13:14,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:14,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:13:14,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:13:14,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-31 22:13:14,760 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:14,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:14,761 INFO L85 PathProgramCache]: Analyzing trace with hash 26693798, now seen corresponding path program 1 times [2024-10-31 22:13:14,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:14,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930826530] [2024-10-31 22:13:14,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:14,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930826530] [2024-10-31 22:13:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930826530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:14,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:14,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:14,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386905913] [2024-10-31 22:13:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:14,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:14,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:15,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-31 22:13:15,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-10-31 22:13:15,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:15,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-31 22:13:15,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:15,290 INFO L124 PetriNetUnfolderBase]: 126/427 cut-off events. [2024-10-31 22:13:15,290 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:13:15,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 427 events. 126/427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1957 event pairs, 105 based on Foata normal form. 4/352 useless extension candidates. Maximal degree in co-relation 677. Up to 269 conditions per place. [2024-10-31 22:13:15,294 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-10-31 22:13:15,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 263 flow [2024-10-31 22:13:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-10-31 22:13:15,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2024-10-31 22:13:15,298 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 155 transitions. [2024-10-31 22:13:15,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 263 flow [2024-10-31 22:13:15,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:15,301 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2024-10-31 22:13:15,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2024-10-31 22:13:15,303 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-10-31 22:13:15,303 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2024-10-31 22:13:15,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-10-31 22:13:15,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:15,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:13:15,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:13:15,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:15,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash -117024572, now seen corresponding path program 1 times [2024-10-31 22:13:15,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456876053] [2024-10-31 22:13:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:15,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:15,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456876053] [2024-10-31 22:13:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456876053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:15,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:15,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340731580] [2024-10-31 22:13:15,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:15,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:15,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:15,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-10-31 22:13:15,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-10-31 22:13:15,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:15,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-10-31 22:13:15,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:16,196 INFO L124 PetriNetUnfolderBase]: 126/423 cut-off events. [2024-10-31 22:13:16,197 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-31 22:13:16,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 423 events. 126/423 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1949 event pairs, 105 based on Foata normal form. 4/352 useless extension candidates. Maximal degree in co-relation 664. Up to 273 conditions per place. [2024-10-31 22:13:16,200 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 41 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-10-31 22:13:16,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 279 flow [2024-10-31 22:13:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-10-31 22:13:16,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316091954022989 [2024-10-31 22:13:16,203 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 185 transitions. [2024-10-31 22:13:16,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 279 flow [2024-10-31 22:13:16,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:16,207 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2024-10-31 22:13:16,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-10-31 22:13:16,208 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2024-10-31 22:13:16,208 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2024-10-31 22:13:16,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-10-31 22:13:16,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:16,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:16,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:13:16,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:16,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1235294511, now seen corresponding path program 1 times [2024-10-31 22:13:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:16,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633974125] [2024-10-31 22:13:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:16,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:16,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633974125] [2024-10-31 22:13:16,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633974125] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:16,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742610910] [2024-10-31 22:13:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:16,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:16,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:16,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:13:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:16,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:13:16,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:16,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:16,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742610910] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:16,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:16,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:13:16,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981371465] [2024-10-31 22:13:16,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:16,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:13:16,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:16,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:13:16,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:13:16,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-31 22:13:16,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 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) [2024-10-31 22:13:16,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:16,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-31 22:13:16,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:17,719 INFO L124 PetriNetUnfolderBase]: 126/439 cut-off events. [2024-10-31 22:13:17,720 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-31 22:13:17,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 439 events. 126/439 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2034 event pairs, 105 based on Foata normal form. 6/370 useless extension candidates. Maximal degree in co-relation 683. Up to 263 conditions per place. [2024-10-31 22:13:17,726 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 44 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2024-10-31 22:13:17,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 341 flow [2024-10-31 22:13:17,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:13:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:13:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2024-10-31 22:13:17,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4610472541507024 [2024-10-31 22:13:17,729 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 361 transitions. [2024-10-31 22:13:17,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 341 flow [2024-10-31 22:13:17,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:17,740 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2024-10-31 22:13:17,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=255, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2024-10-31 22:13:17,741 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-10-31 22:13:17,744 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2024-10-31 22:13:17,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 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) [2024-10-31 22:13:17,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:17,745 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:13:17,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:13:17,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:17,947 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:17,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:17,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1707090701, now seen corresponding path program 1 times [2024-10-31 22:13:17,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:17,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701406549] [2024-10-31 22:13:17,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:18,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:18,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701406549] [2024-10-31 22:13:18,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701406549] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:18,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607754752] [2024-10-31 22:13:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:18,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:18,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:18,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:18,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:13:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:18,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:13:18,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:18,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:13:18,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607754752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:18,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:13:18,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:13:18,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341880393] [2024-10-31 22:13:18,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:18,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:18,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:13:18,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-10-31 22:13:18,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 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) [2024-10-31 22:13:18,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:18,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-10-31 22:13:18,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:19,547 INFO L124 PetriNetUnfolderBase]: 126/435 cut-off events. [2024-10-31 22:13:19,547 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-10-31 22:13:19,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 435 events. 126/435 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2010 event pairs, 105 based on Foata normal form. 4/364 useless extension candidates. Maximal degree in co-relation 700. Up to 261 conditions per place. [2024-10-31 22:13:19,550 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 37 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-10-31 22:13:19,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 331 flow [2024-10-31 22:13:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:13:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-10-31 22:13:19,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846743295019157 [2024-10-31 22:13:19,553 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 6 states and 253 transitions. [2024-10-31 22:13:19,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 331 flow [2024-10-31 22:13:19,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 81 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:19,557 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 249 flow [2024-10-31 22:13:19,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-10-31 22:13:19,559 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-10-31 22:13:19,559 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 249 flow [2024-10-31 22:13:19,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 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) [2024-10-31 22:13:19,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:19,560 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-10-31 22:13:19,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:13:19,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:19,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:19,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1353019789, now seen corresponding path program 1 times [2024-10-31 22:13:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873519951] [2024-10-31 22:13:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:13:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:20,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873519951] [2024-10-31 22:13:20,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873519951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:20,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864614049] [2024-10-31 22:13:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:20,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:20,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:20,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:20,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-10-31 22:13:20,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-10-31 22:13:20,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:20,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-10-31 22:13:20,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:20,364 INFO L124 PetriNetUnfolderBase]: 126/433 cut-off events. [2024-10-31 22:13:20,364 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-10-31 22:13:20,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 433 events. 126/433 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2001 event pairs, 105 based on Foata normal form. 2/360 useless extension candidates. Maximal degree in co-relation 706. Up to 267 conditions per place. [2024-10-31 22:13:20,367 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2024-10-31 22:13:20,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 337 flow [2024-10-31 22:13:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-10-31 22:13:20,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-10-31 22:13:20,369 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 249 flow. Second operand 4 states and 184 transitions. [2024-10-31 22:13:20,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 337 flow [2024-10-31 22:13:20,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-31 22:13:20,376 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 257 flow [2024-10-31 22:13:20,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-10-31 22:13:20,378 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2024-10-31 22:13:20,378 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 257 flow [2024-10-31 22:13:20,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-10-31 22:13:20,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:20,379 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-10-31 22:13:20,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:13:20,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:20,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1123045489, now seen corresponding path program 2 times [2024-10-31 22:13:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985818109] [2024-10-31 22:13:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:13:20,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:20,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985818109] [2024-10-31 22:13:20,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985818109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:20,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:20,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:20,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834379012] [2024-10-31 22:13:20,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:20,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:20,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:20,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-10-31 22:13:20,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2024-10-31 22:13:20,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:20,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-10-31 22:13:20,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:21,123 INFO L124 PetriNetUnfolderBase]: 126/431 cut-off events. [2024-10-31 22:13:21,123 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-31 22:13:21,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 431 events. 126/431 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1993 event pairs, 105 based on Foata normal form. 2/360 useless extension candidates. Maximal degree in co-relation 688. Up to 272 conditions per place. [2024-10-31 22:13:21,126 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 51 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-10-31 22:13:21,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 437 flow [2024-10-31 22:13:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2024-10-31 22:13:21,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-10-31 22:13:21,127 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 257 flow. Second operand 4 states and 188 transitions. [2024-10-31 22:13:21,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 437 flow [2024-10-31 22:13:21,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 413 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:21,131 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2024-10-31 22:13:21,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-10-31 22:13:21,132 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-10-31 22:13:21,164 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2024-10-31 22:13:21,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2024-10-31 22:13:21,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:21,164 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:21,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:13:21,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:21,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2144288996, now seen corresponding path program 1 times [2024-10-31 22:13:21,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:21,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489435970] [2024-10-31 22:13:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:13:21,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489435970] [2024-10-31 22:13:21,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489435970] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268811705] [2024-10-31 22:13:21,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:21,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:21,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:21,442 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:21,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:13:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:21,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:13:21,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:21,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268811705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:22,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:22,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-10-31 22:13:22,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735500757] [2024-10-31 22:13:22,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:13:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:13:22,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:13:22,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-10-31 22:13:22,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 268 flow. Second operand has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 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) [2024-10-31 22:13:22,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:22,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-10-31 22:13:22,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:24,590 INFO L124 PetriNetUnfolderBase]: 131/533 cut-off events. [2024-10-31 22:13:24,591 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2024-10-31 22:13:24,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 533 events. 131/533 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2158 event pairs, 105 based on Foata normal form. 13/473 useless extension candidates. Maximal degree in co-relation 1019. Up to 262 conditions per place. [2024-10-31 22:13:24,594 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 80 selfloop transitions, 55 changer transitions 0/167 dead transitions. [2024-10-31 22:13:24,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 167 transitions, 1141 flow [2024-10-31 22:13:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-31 22:13:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-10-31 22:13:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1556 transitions. [2024-10-31 22:13:24,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.406478578892372 [2024-10-31 22:13:24,605 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 44 states and 1556 transitions. [2024-10-31 22:13:24,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 167 transitions, 1141 flow [2024-10-31 22:13:24,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 167 transitions, 1137 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:24,612 INFO L231 Difference]: Finished difference. Result has 147 places, 130 transitions, 823 flow [2024-10-31 22:13:24,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=823, PETRI_PLACES=147, PETRI_TRANSITIONS=130} [2024-10-31 22:13:24,613 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 73 predicate places. [2024-10-31 22:13:24,613 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 823 flow [2024-10-31 22:13:24,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 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) [2024-10-31 22:13:24,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:24,614 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-31 22:13:24,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:13:24,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:24,815 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:24,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash 518306271, now seen corresponding path program 1 times [2024-10-31 22:13:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:24,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913098262] [2024-10-31 22:13:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:24,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913098262] [2024-10-31 22:13:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913098262] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119523446] [2024-10-31 22:13:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:26,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:26,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:26,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:26,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:13:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:26,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:13:26,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:26,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:27,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119523446] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:27,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-31 22:13:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331651194] [2024-10-31 22:13:27,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:27,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-31 22:13:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-31 22:13:27,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-31 22:13:27,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-31 22:13:27,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 130 transitions, 823 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2024-10-31 22:13:27,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:27,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-31 22:13:27,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:31,719 INFO L124 PetriNetUnfolderBase]: 127/685 cut-off events. [2024-10-31 22:13:31,720 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2024-10-31 22:13:31,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 685 events. 127/685 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2244 event pairs, 105 based on Foata normal form. 24/636 useless extension candidates. Maximal degree in co-relation 1689. Up to 266 conditions per place. [2024-10-31 22:13:31,730 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 113 selfloop transitions, 93 changer transitions 0/240 dead transitions. [2024-10-31 22:13:31,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 240 transitions, 2467 flow [2024-10-31 22:13:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-31 22:13:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-31 22:13:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1171 transitions. [2024-10-31 22:13:31,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43418613274008155 [2024-10-31 22:13:31,741 INFO L175 Difference]: Start difference. First operand has 147 places, 130 transitions, 823 flow. Second operand 31 states and 1171 transitions. [2024-10-31 22:13:31,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 240 transitions, 2467 flow [2024-10-31 22:13:31,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 240 transitions, 2359 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-10-31 22:13:31,767 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 1560 flow [2024-10-31 22:13:31,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1560, PETRI_PLACES=181, PETRI_TRANSITIONS=181} [2024-10-31 22:13:31,771 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 107 predicate places. [2024-10-31 22:13:31,771 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 1560 flow [2024-10-31 22:13:31,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2024-10-31 22:13:31,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:31,774 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-31 22:13:31,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:13:31,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:31,975 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:13:31,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1613397921, now seen corresponding path program 2 times [2024-10-31 22:13:31,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:31,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713738859] [2024-10-31 22:13:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:31,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:34,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:34,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713738859] [2024-10-31 22:13:34,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713738859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:34,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693034959] [2024-10-31 22:13:34,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:13:34,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:34,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:34,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:34,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0b5f2f-30de-4e66-9a16-396b0e47b95c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:13:35,820 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:13:35,820 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:13:35,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-31 22:13:35,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:36,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:13:37,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693034959] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:37,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:37,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-31 22:13:37,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277357612] [2024-10-31 22:13:37,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:37,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-31 22:13:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-31 22:13:37,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-31 22:13:37,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-31 22:13:37,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 1560 flow. Second operand has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 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) [2024-10-31 22:13:37,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:37,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-31 22:13:37,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand