./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB --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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:06:50,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:06:50,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:06:50,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:06:50,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:06:51,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:06:51,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:06:51,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:06:51,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:06:51,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:06:51,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:06:51,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:06:51,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:06:51,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:06:51,008 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:06:51,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:06:51,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:06:51,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:06:51,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:06:51,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:06:51,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:06:51,010 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:06:51,011 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:06:51,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:06:51,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:51,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:51,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:51,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:06:51,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:06:51,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:06:51,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:06:51,014 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2024-11-28 02:06:51,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:06:51,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:06:51,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:06:51,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:06:51,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:06:51,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-28 02:06:54,320 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/99205ac0c/e0e80578625b472dacaf6fe0a0708c15/FLAG56a074461 [2024-11-28 02:06:54,345 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-28 02:06:54,623 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:06:54,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-28 02:06:54,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/99205ac0c/e0e80578625b472dacaf6fe0a0708c15/FLAG56a074461 [2024-11-28 02:06:54,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/99205ac0c/e0e80578625b472dacaf6fe0a0708c15 [2024-11-28 02:06:54,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:06:54,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:06:54,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:06:54,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:06:54,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c061803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54, skipping insertion in model container [2024-11-28 02:06:54,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:06:54,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:54,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:06:54,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:54,957 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:06:54,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54 WrapperNode [2024-11-28 02:06:54,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:54,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:06:54,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:06:54,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,003 INFO L138 Inliner]: procedures = 25, calls = 31, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 343 [2024-11-28 02:06:55,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:55,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:06:55,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:06:55,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,040 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-28 02:06:55,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,060 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:06:55,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:06:55,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:06:55,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:55,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:06:55,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:06:55,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:06:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:06:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 02:06:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 02:06:55,156 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 02:06:55,156 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:06:55,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:06:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:06:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:06:55,158 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:06:55,292 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:06:55,294 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:06:56,176 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:06:56,176 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:06:56,671 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:06:56,671 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 02:06:56,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:56 BoogieIcfgContainer [2024-11-28 02:06:56,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:06:56,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:06:56,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:06:56,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:06:56,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:06:54" (1/3) ... [2024-11-28 02:06:56,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352584df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:56, skipping insertion in model container [2024-11-28 02:06:56,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (2/3) ... [2024-11-28 02:06:56,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352584df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:56, skipping insertion in model container [2024-11-28 02:06:56,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:56" (3/3) ... [2024-11-28 02:06:56,690 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-11-28 02:06:56,710 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:06:56,711 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-three-array-sum-alt.wvr.c that has 4 procedures, 128 locations, 1 initial locations, 6 loop locations, and 42 error locations. [2024-11-28 02:06:56,712 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:06:56,835 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 02:06:56,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 143 transitions, 307 flow [2024-11-28 02:06:56,980 INFO L124 PetriNetUnfolderBase]: 16/140 cut-off events. [2024-11-28 02:06:56,983 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 02:06:56,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 16/140 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 492 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2024-11-28 02:06:56,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 143 transitions, 307 flow [2024-11-28 02:06:57,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 139 transitions, 296 flow [2024-11-28 02:06:57,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:06:57,036 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;@3712e7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:06:57,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2024-11-28 02:06:57,041 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:06:57,041 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 02:06:57,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:06:57,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:57,042 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:06:57,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:06:57,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1090215, now seen corresponding path program 1 times [2024-11-28 02:06:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:57,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147564050] [2024-11-28 02:06:57,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:57,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:06:57,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:57,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147564050] [2024-11-28 02:06:57,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147564050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:57,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:57,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:06:57,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44886991] [2024-11-28 02:06:57,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:57,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:06:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:57,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:06:57,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:06:57,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:06:57,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 139 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2024-11-28 02:06:57,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:57,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:06:57,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:59,940 INFO L124 PetriNetUnfolderBase]: 6055/13029 cut-off events. [2024-11-28 02:06:59,940 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-11-28 02:06:59,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21257 conditions, 13029 events. 6055/13029 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 121912 event pairs, 3963 based on Foata normal form. 3/10327 useless extension candidates. Maximal degree in co-relation 20186. Up to 7969 conditions per place. [2024-11-28 02:07:00,063 INFO L140 encePairwiseOnDemand]: 127/143 looper letters, 61 selfloop transitions, 10 changer transitions 0/148 dead transitions. [2024-11-28 02:07:00,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 148 transitions, 456 flow [2024-11-28 02:07:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-28 02:07:00,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6940559440559441 [2024-11-28 02:07:00,087 INFO L175 Difference]: Start difference. First operand has 133 places, 139 transitions, 296 flow. Second operand 4 states and 397 transitions. [2024-11-28 02:07:00,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 148 transitions, 456 flow [2024-11-28 02:07:00,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 148 transitions, 444 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 02:07:00,116 INFO L231 Difference]: Finished difference. Result has 133 places, 148 transitions, 372 flow [2024-11-28 02:07:00,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=133, PETRI_TRANSITIONS=148} [2024-11-28 02:07:00,123 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2024-11-28 02:07:00,123 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 148 transitions, 372 flow [2024-11-28 02:07:00,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2024-11-28 02:07:00,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:00,124 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 02:07:00,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:00,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:00,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1879958910, now seen corresponding path program 1 times [2024-11-28 02:07:00,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10466254] [2024-11-28 02:07:00,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:00,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:00,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10466254] [2024-11-28 02:07:00,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10466254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:00,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600297094] [2024-11-28 02:07:00,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:00,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:00,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:00,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:00,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:00,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:00,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:00,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600297094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:00,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:00,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 02:07:00,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786008108] [2024-11-28 02:07:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:00,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:00,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:00,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:00,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:00,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 148 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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) [2024-11-28 02:07:00,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:00,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:00,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:02,247 INFO L124 PetriNetUnfolderBase]: 6055/13026 cut-off events. [2024-11-28 02:07:02,248 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-28 02:07:02,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21107 conditions, 13026 events. 6055/13026 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 121905 event pairs, 3963 based on Foata normal form. 3/10329 useless extension candidates. Maximal degree in co-relation 21034. Up to 7954 conditions per place. [2024-11-28 02:07:02,364 INFO L140 encePairwiseOnDemand]: 130/143 looper letters, 51 selfloop transitions, 17 changer transitions 0/145 dead transitions. [2024-11-28 02:07:02,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 145 transitions, 496 flow [2024-11-28 02:07:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:02,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2024-11-28 02:07:02,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6421911421911422 [2024-11-28 02:07:02,374 INFO L175 Difference]: Start difference. First operand has 133 places, 148 transitions, 372 flow. Second operand 6 states and 551 transitions. [2024-11-28 02:07:02,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 145 transitions, 496 flow [2024-11-28 02:07:02,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:02,383 INFO L231 Difference]: Finished difference. Result has 135 places, 145 transitions, 394 flow [2024-11-28 02:07:02,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=135, PETRI_TRANSITIONS=145} [2024-11-28 02:07:02,386 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-11-28 02:07:02,386 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 145 transitions, 394 flow [2024-11-28 02:07:02,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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) [2024-11-28 02:07:02,388 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:02,388 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 02:07:02,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:02,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:02,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:02,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:02,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1850817130, now seen corresponding path program 1 times [2024-11-28 02:07:02,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:02,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40536915] [2024-11-28 02:07:02,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:02,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40536915] [2024-11-28 02:07:02,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40536915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992336827] [2024-11-28 02:07:02,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:02,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:02,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:02,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:02,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:02,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992336827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:02,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 02:07:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732038521] [2024-11-28 02:07:02,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:02,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:07:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:02,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:07:02,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:07:03,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:03,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 145 transitions, 394 flow. Second operand has 12 states, 12 states have (on average 81.08333333333333) internal successors, (973), 12 states have internal predecessors, (973), 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) [2024-11-28 02:07:03,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:03,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:03,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:05,165 INFO L124 PetriNetUnfolderBase]: 6064/13062 cut-off events. [2024-11-28 02:07:05,165 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-11-28 02:07:05,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21248 conditions, 13062 events. 6064/13062 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 122187 event pairs, 3963 based on Foata normal form. 9/10371 useless extension candidates. Maximal degree in co-relation 21036. Up to 7969 conditions per place. [2024-11-28 02:07:05,256 INFO L140 encePairwiseOnDemand]: 130/143 looper letters, 58 selfloop transitions, 37 changer transitions 0/172 dead transitions. [2024-11-28 02:07:05,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 172 transitions, 758 flow [2024-11-28 02:07:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:07:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 02:07:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 904 transitions. [2024-11-28 02:07:05,260 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6321678321678321 [2024-11-28 02:07:05,260 INFO L175 Difference]: Start difference. First operand has 135 places, 145 transitions, 394 flow. Second operand 10 states and 904 transitions. [2024-11-28 02:07:05,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 172 transitions, 758 flow [2024-11-28 02:07:05,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 172 transitions, 675 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:05,270 INFO L231 Difference]: Finished difference. Result has 142 places, 172 transitions, 609 flow [2024-11-28 02:07:05,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=142, PETRI_TRANSITIONS=172} [2024-11-28 02:07:05,274 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 9 predicate places. [2024-11-28 02:07:05,274 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 172 transitions, 609 flow [2024-11-28 02:07:05,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.08333333333333) internal successors, (973), 12 states have internal predecessors, (973), 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) [2024-11-28 02:07:05,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:05,275 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:05,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:05,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 02:07:05,476 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:05,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:05,477 INFO L85 PathProgramCache]: Analyzing trace with hash -964458820, now seen corresponding path program 1 times [2024-11-28 02:07:05,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:05,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965068867] [2024-11-28 02:07:05,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:05,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:05,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:05,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965068867] [2024-11-28 02:07:05,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965068867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:05,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:05,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:05,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016561522] [2024-11-28 02:07:05,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:05,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:05,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:05,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:05,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:05,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:05,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 172 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-11-28 02:07:05,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:05,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:05,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:07,963 INFO L124 PetriNetUnfolderBase]: 12144/21922 cut-off events. [2024-11-28 02:07:07,964 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2024-11-28 02:07:08,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38263 conditions, 21922 events. 12144/21922 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 904. Compared 190210 event pairs, 3907 based on Foata normal form. 544/18448 useless extension candidates. Maximal degree in co-relation 38165. Up to 7365 conditions per place. [2024-11-28 02:07:08,149 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 152 selfloop transitions, 5 changer transitions 0/231 dead transitions. [2024-11-28 02:07:08,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 231 transitions, 1045 flow [2024-11-28 02:07:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2024-11-28 02:07:08,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7762237762237763 [2024-11-28 02:07:08,153 INFO L175 Difference]: Start difference. First operand has 142 places, 172 transitions, 609 flow. Second operand 4 states and 444 transitions. [2024-11-28 02:07:08,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 231 transitions, 1045 flow [2024-11-28 02:07:08,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 231 transitions, 1008 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:08,166 INFO L231 Difference]: Finished difference. Result has 145 places, 174 transitions, 606 flow [2024-11-28 02:07:08,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=606, PETRI_PLACES=145, PETRI_TRANSITIONS=174} [2024-11-28 02:07:08,167 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 12 predicate places. [2024-11-28 02:07:08,168 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 174 transitions, 606 flow [2024-11-28 02:07:08,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-11-28 02:07:08,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:08,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:08,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:08,169 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:08,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 166548862, now seen corresponding path program 1 times [2024-11-28 02:07:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:08,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36091321] [2024-11-28 02:07:08,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36091321] [2024-11-28 02:07:08,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36091321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:08,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:08,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825913103] [2024-11-28 02:07:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:08,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:08,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:08,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:08,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 143 [2024-11-28 02:07:08,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 174 transitions, 606 flow. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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) [2024-11-28 02:07:08,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:08,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 143 [2024-11-28 02:07:08,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:10,354 INFO L124 PetriNetUnfolderBase]: 9777/20650 cut-off events. [2024-11-28 02:07:10,354 INFO L125 PetriNetUnfolderBase]: For 3274/3652 co-relation queries the response was YES. [2024-11-28 02:07:10,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36168 conditions, 20650 events. 9777/20650 cut-off events. For 3274/3652 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 199102 event pairs, 6022 based on Foata normal form. 463/17418 useless extension candidates. Maximal degree in co-relation 36015. Up to 10134 conditions per place. [2024-11-28 02:07:10,458 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 167 selfloop transitions, 24 changer transitions 0/271 dead transitions. [2024-11-28 02:07:10,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 271 transitions, 1319 flow [2024-11-28 02:07:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2024-11-28 02:07:10,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7703962703962703 [2024-11-28 02:07:10,462 INFO L175 Difference]: Start difference. First operand has 145 places, 174 transitions, 606 flow. Second operand 6 states and 661 transitions. [2024-11-28 02:07:10,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 271 transitions, 1319 flow [2024-11-28 02:07:10,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 271 transitions, 1319 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:10,503 INFO L231 Difference]: Finished difference. Result has 153 places, 184 transitions, 740 flow [2024-11-28 02:07:10,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=153, PETRI_TRANSITIONS=184} [2024-11-28 02:07:10,504 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 20 predicate places. [2024-11-28 02:07:10,505 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 184 transitions, 740 flow [2024-11-28 02:07:10,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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) [2024-11-28 02:07:10,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:10,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:10,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:07:10,506 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:10,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1017136797, now seen corresponding path program 1 times [2024-11-28 02:07:10,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:10,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379216281] [2024-11-28 02:07:10,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:10,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379216281] [2024-11-28 02:07:10,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379216281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:10,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:10,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151048935] [2024-11-28 02:07:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:10,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:10,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:10,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:10,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:10,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:10,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 184 transitions, 740 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-11-28 02:07:10,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:10,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:10,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:13,878 INFO L124 PetriNetUnfolderBase]: 20150/36696 cut-off events. [2024-11-28 02:07:13,878 INFO L125 PetriNetUnfolderBase]: For 10357/10717 co-relation queries the response was YES. [2024-11-28 02:07:13,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72669 conditions, 36696 events. 20150/36696 cut-off events. For 10357/10717 co-relation queries the response was YES. Maximal size of possible extension queue 1342. Compared 335847 event pairs, 6792 based on Foata normal form. 1106/32518 useless extension candidates. Maximal degree in co-relation 72508. Up to 12843 conditions per place. [2024-11-28 02:07:14,057 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 170 selfloop transitions, 5 changer transitions 0/249 dead transitions. [2024-11-28 02:07:14,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 249 transitions, 1288 flow [2024-11-28 02:07:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 442 transitions. [2024-11-28 02:07:14,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2024-11-28 02:07:14,059 INFO L175 Difference]: Start difference. First operand has 153 places, 184 transitions, 740 flow. Second operand 4 states and 442 transitions. [2024-11-28 02:07:14,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 249 transitions, 1288 flow [2024-11-28 02:07:14,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 249 transitions, 1284 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:14,204 INFO L231 Difference]: Finished difference. Result has 158 places, 186 transitions, 770 flow [2024-11-28 02:07:14,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=770, PETRI_PLACES=158, PETRI_TRANSITIONS=186} [2024-11-28 02:07:14,205 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 25 predicate places. [2024-11-28 02:07:14,206 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 186 transitions, 770 flow [2024-11-28 02:07:14,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-11-28 02:07:14,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:14,206 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:14,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:14,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:14,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:14,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1466468400, now seen corresponding path program 1 times [2024-11-28 02:07:14,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:14,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532637797] [2024-11-28 02:07:14,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:14,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532637797] [2024-11-28 02:07:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532637797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837826983] [2024-11-28 02:07:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:14,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:14,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:14,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:14,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 143 [2024-11-28 02:07:14,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 186 transitions, 770 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2024-11-28 02:07:14,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:14,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 143 [2024-11-28 02:07:14,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:16,539 INFO L124 PetriNetUnfolderBase]: 9912/21860 cut-off events. [2024-11-28 02:07:16,539 INFO L125 PetriNetUnfolderBase]: For 8597/9542 co-relation queries the response was YES. [2024-11-28 02:07:16,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41761 conditions, 21860 events. 9912/21860 cut-off events. For 8597/9542 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 221589 event pairs, 6639 based on Foata normal form. 588/18840 useless extension candidates. Maximal degree in co-relation 41597. Up to 12335 conditions per place. [2024-11-28 02:07:16,673 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 154 selfloop transitions, 24 changer transitions 0/258 dead transitions. [2024-11-28 02:07:16,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 258 transitions, 1384 flow [2024-11-28 02:07:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:16,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2024-11-28 02:07:16,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.752913752913753 [2024-11-28 02:07:16,676 INFO L175 Difference]: Start difference. First operand has 158 places, 186 transitions, 770 flow. Second operand 6 states and 646 transitions. [2024-11-28 02:07:16,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 258 transitions, 1384 flow [2024-11-28 02:07:16,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 258 transitions, 1384 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:16,714 INFO L231 Difference]: Finished difference. Result has 165 places, 188 transitions, 840 flow [2024-11-28 02:07:16,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=840, PETRI_PLACES=165, PETRI_TRANSITIONS=188} [2024-11-28 02:07:16,715 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 32 predicate places. [2024-11-28 02:07:16,715 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 188 transitions, 840 flow [2024-11-28 02:07:16,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2024-11-28 02:07:16,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:16,715 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:16,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:07:16,715 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:16,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1015350132, now seen corresponding path program 1 times [2024-11-28 02:07:16,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:16,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195645560] [2024-11-28 02:07:16,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:16,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195645560] [2024-11-28 02:07:16,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195645560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:16,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:16,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:16,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726984603] [2024-11-28 02:07:16,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:16,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:16,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:16,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:16,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:16,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2024-11-28 02:07:16,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 188 transitions, 840 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-11-28 02:07:16,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:16,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2024-11-28 02:07:16,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:21,007 INFO L124 PetriNetUnfolderBase]: 22898/41978 cut-off events. [2024-11-28 02:07:21,007 INFO L125 PetriNetUnfolderBase]: For 23546/25319 co-relation queries the response was YES. [2024-11-28 02:07:21,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91427 conditions, 41978 events. 22898/41978 cut-off events. For 23546/25319 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 398259 event pairs, 7161 based on Foata normal form. 2063/38697 useless extension candidates. Maximal degree in co-relation 91256. Up to 13115 conditions per place. [2024-11-28 02:07:21,240 INFO L140 encePairwiseOnDemand]: 128/143 looper letters, 174 selfloop transitions, 10 changer transitions 0/252 dead transitions. [2024-11-28 02:07:21,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 252 transitions, 1468 flow [2024-11-28 02:07:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:21,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 418 transitions. [2024-11-28 02:07:21,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2024-11-28 02:07:21,241 INFO L175 Difference]: Start difference. First operand has 165 places, 188 transitions, 840 flow. Second operand 4 states and 418 transitions. [2024-11-28 02:07:21,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 252 transitions, 1468 flow [2024-11-28 02:07:21,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 252 transitions, 1432 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:21,501 INFO L231 Difference]: Finished difference. Result has 166 places, 192 transitions, 870 flow [2024-11-28 02:07:21,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=870, PETRI_PLACES=166, PETRI_TRANSITIONS=192} [2024-11-28 02:07:21,502 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 33 predicate places. [2024-11-28 02:07:21,502 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 192 transitions, 870 flow [2024-11-28 02:07:21,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-11-28 02:07:21,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:21,502 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:21,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:07:21,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:21,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1411081760, now seen corresponding path program 1 times [2024-11-28 02:07:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:21,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657164438] [2024-11-28 02:07:21,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:21,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:21,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657164438] [2024-11-28 02:07:21,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657164438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:21,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:21,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:21,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067695928] [2024-11-28 02:07:21,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:21,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:21,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:21,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:21,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 143 [2024-11-28 02:07:21,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 192 transitions, 870 flow. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-11-28 02:07:21,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:21,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 143 [2024-11-28 02:07:21,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:24,606 INFO L124 PetriNetUnfolderBase]: 13897/29780 cut-off events. [2024-11-28 02:07:24,606 INFO L125 PetriNetUnfolderBase]: For 19589/21181 co-relation queries the response was YES. [2024-11-28 02:07:24,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65058 conditions, 29780 events. 13897/29780 cut-off events. For 19589/21181 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 314572 event pairs, 9776 based on Foata normal form. 847/27378 useless extension candidates. Maximal degree in co-relation 64888. Up to 17787 conditions per place. [2024-11-28 02:07:24,816 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 133 selfloop transitions, 24 changer transitions 0/237 dead transitions. [2024-11-28 02:07:24,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 237 transitions, 1396 flow [2024-11-28 02:07:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 621 transitions. [2024-11-28 02:07:24,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7237762237762237 [2024-11-28 02:07:24,818 INFO L175 Difference]: Start difference. First operand has 166 places, 192 transitions, 870 flow. Second operand 6 states and 621 transitions. [2024-11-28 02:07:24,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 237 transitions, 1396 flow [2024-11-28 02:07:25,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 237 transitions, 1396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:25,212 INFO L231 Difference]: Finished difference. Result has 173 places, 194 transitions, 940 flow [2024-11-28 02:07:25,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=940, PETRI_PLACES=173, PETRI_TRANSITIONS=194} [2024-11-28 02:07:25,213 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 40 predicate places. [2024-11-28 02:07:25,213 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 194 transitions, 940 flow [2024-11-28 02:07:25,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-11-28 02:07:25,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:25,214 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-28 02:07:25,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:07:25,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:25,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:25,215 INFO L85 PathProgramCache]: Analyzing trace with hash -494470491, now seen corresponding path program 2 times [2024-11-28 02:07:25,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:25,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551845485] [2024-11-28 02:07:25,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:25,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:25,231 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:07:25,231 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:07:25,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:25,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551845485] [2024-11-28 02:07:25,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551845485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:25,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081333946] [2024-11-28 02:07:25,282 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:25,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:07:25,363 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:07:25,363 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:25,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:07:25,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:07:25,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:07:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081333946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:25,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:25,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 02:07:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152189841] [2024-11-28 02:07:25,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:25,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:25,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:25,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:25,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:25,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 194 transitions, 940 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2024-11-28 02:07:25,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:25,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:25,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:28,608 INFO L124 PetriNetUnfolderBase]: 13980/30830 cut-off events. [2024-11-28 02:07:28,609 INFO L125 PetriNetUnfolderBase]: For 20598/22157 co-relation queries the response was YES. [2024-11-28 02:07:28,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67250 conditions, 30830 events. 13980/30830 cut-off events. For 20598/22157 co-relation queries the response was YES. Maximal size of possible extension queue 1426. Compared 334226 event pairs, 9883 based on Foata normal form. 822/27899 useless extension candidates. Maximal degree in co-relation 67074. Up to 18186 conditions per place. [2024-11-28 02:07:28,823 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 100 selfloop transitions, 16 changer transitions 0/193 dead transitions. [2024-11-28 02:07:28,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 193 transitions, 1162 flow [2024-11-28 02:07:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2024-11-28 02:07:28,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6625874125874126 [2024-11-28 02:07:28,826 INFO L175 Difference]: Start difference. First operand has 173 places, 194 transitions, 940 flow. Second operand 4 states and 379 transitions. [2024-11-28 02:07:28,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 193 transitions, 1162 flow [2024-11-28 02:07:29,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 193 transitions, 1126 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:29,099 INFO L231 Difference]: Finished difference. Result has 172 places, 193 transitions, 926 flow [2024-11-28 02:07:29,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=926, PETRI_PLACES=172, PETRI_TRANSITIONS=193} [2024-11-28 02:07:29,100 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 39 predicate places. [2024-11-28 02:07:29,100 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 193 transitions, 926 flow [2024-11-28 02:07:29,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2024-11-28 02:07:29,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:29,100 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-28 02:07:29,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:07:29,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:07:29,301 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:29,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:29,301 INFO L85 PathProgramCache]: Analyzing trace with hash -774382694, now seen corresponding path program 1 times [2024-11-28 02:07:29,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:29,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736191818] [2024-11-28 02:07:29,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 02:07:29,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:29,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736191818] [2024-11-28 02:07:29,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736191818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:29,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758800473] [2024-11-28 02:07:29,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:29,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:29,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:29,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:29,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:29,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 143 [2024-11-28 02:07:29,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 193 transitions, 926 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-11-28 02:07:29,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:29,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 143 [2024-11-28 02:07:29,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:32,680 INFO L124 PetriNetUnfolderBase]: 13970/30790 cut-off events. [2024-11-28 02:07:32,680 INFO L125 PetriNetUnfolderBase]: For 20453/22012 co-relation queries the response was YES. [2024-11-28 02:07:32,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67086 conditions, 30790 events. 13970/30790 cut-off events. For 20453/22012 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 334066 event pairs, 9883 based on Foata normal form. 823/27861 useless extension candidates. Maximal degree in co-relation 66973. Up to 18150 conditions per place. [2024-11-28 02:07:32,868 INFO L140 encePairwiseOnDemand]: 134/143 looper letters, 92 selfloop transitions, 16 changer transitions 0/187 dead transitions. [2024-11-28 02:07:32,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 187 transitions, 1062 flow [2024-11-28 02:07:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:32,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 413 transitions. [2024-11-28 02:07:32,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.722027972027972 [2024-11-28 02:07:32,870 INFO L175 Difference]: Start difference. First operand has 172 places, 193 transitions, 926 flow. Second operand 4 states and 413 transitions. [2024-11-28 02:07:32,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 187 transitions, 1062 flow [2024-11-28 02:07:33,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 187 transitions, 1018 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:33,136 INFO L231 Difference]: Finished difference. Result has 172 places, 187 transitions, 841 flow [2024-11-28 02:07:33,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=841, PETRI_PLACES=172, PETRI_TRANSITIONS=187} [2024-11-28 02:07:33,137 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 39 predicate places. [2024-11-28 02:07:33,137 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 187 transitions, 841 flow [2024-11-28 02:07:33,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-11-28 02:07:33,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:33,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:33,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:07:33,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:33,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1949465098, now seen corresponding path program 1 times [2024-11-28 02:07:33,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:33,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568854554] [2024-11-28 02:07:33,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:33,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568854554] [2024-11-28 02:07:33,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568854554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133598287] [2024-11-28 02:07:33,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:33,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:33,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:33,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:33,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:07:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:33,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 02:07:33,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:34,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 02:07:34,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 02:07:34,108 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 02:07:34,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 02:07:34,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 02:07:34,196 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 02:07:34,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 02:07:34,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 02:07:34,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 02:07:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:34,304 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:34,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:34,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2024-11-28 02:07:34,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:34,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 135 [2024-11-28 02:07:34,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-11-28 02:07:34,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2024-11-28 02:07:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133598287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:34,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:34,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2024-11-28 02:07:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887350462] [2024-11-28 02:07:34,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 02:07:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 02:07:34,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=542, Unknown=4, NotChecked=0, Total=650 [2024-11-28 02:07:35,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 143 [2024-11-28 02:07:35,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 187 transitions, 841 flow. Second operand has 26 states, 26 states have (on average 78.65384615384616) internal successors, (2045), 26 states have internal predecessors, (2045), 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) [2024-11-28 02:07:35,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:35,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 143 [2024-11-28 02:07:35,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:46,623 INFO L124 PetriNetUnfolderBase]: 59454/91761 cut-off events. [2024-11-28 02:07:46,623 INFO L125 PetriNetUnfolderBase]: For 71579/78893 co-relation queries the response was YES. [2024-11-28 02:07:46,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230838 conditions, 91761 events. 59454/91761 cut-off events. For 71579/78893 co-relation queries the response was YES. Maximal size of possible extension queue 2776. Compared 767784 event pairs, 12789 based on Foata normal form. 3751/88986 useless extension candidates. Maximal degree in co-relation 230728. Up to 28504 conditions per place. [2024-11-28 02:07:47,225 INFO L140 encePairwiseOnDemand]: 124/143 looper letters, 271 selfloop transitions, 35 changer transitions 0/376 dead transitions. [2024-11-28 02:07:47,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 376 transitions, 2186 flow [2024-11-28 02:07:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:07:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 02:07:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1237 transitions. [2024-11-28 02:07:47,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6654115115653577 [2024-11-28 02:07:47,229 INFO L175 Difference]: Start difference. First operand has 172 places, 187 transitions, 841 flow. Second operand 13 states and 1237 transitions. [2024-11-28 02:07:47,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 376 transitions, 2186 flow [2024-11-28 02:07:47,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 376 transitions, 2152 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:47,727 INFO L231 Difference]: Finished difference. Result has 184 places, 199 transitions, 989 flow [2024-11-28 02:07:47,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=989, PETRI_PLACES=184, PETRI_TRANSITIONS=199} [2024-11-28 02:07:47,728 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 51 predicate places. [2024-11-28 02:07:47,728 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 199 transitions, 989 flow [2024-11-28 02:07:47,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 78.65384615384616) internal successors, (2045), 26 states have internal predecessors, (2045), 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) [2024-11-28 02:07:47,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:47,729 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:47,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:47,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:07:47,933 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-28 02:07:47,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1628502069, now seen corresponding path program 1 times [2024-11-28 02:07:47,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:47,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034702570] [2024-11-28 02:07:47,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:07:48,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:48,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034702570] [2024-11-28 02:07:48,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034702570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:48,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234197282] [2024-11-28 02:07:48,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:48,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:48,163 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:48,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ed8d59-3653-435c-8ef4-66c90041a9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:07:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:48,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:07:48,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:07:48,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:07:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234197282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:48,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:48,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2024-11-28 02:07:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96874489] [2024-11-28 02:07:48,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:48,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:07:48,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:48,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:07:48,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:07:48,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 143 [2024-11-28 02:07:48,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 199 transitions, 989 flow. Second operand has 21 states, 21 states have (on average 81.28571428571429) internal successors, (1707), 21 states have internal predecessors, (1707), 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) [2024-11-28 02:07:48,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:48,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 143 [2024-11-28 02:07:48,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand