./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-1.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_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/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_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/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_ef3740ea-9113-457d-bf28-ef2902156dd4/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 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:38:26,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:38:27,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:38:27,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:38:27,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:38:27,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:38:27,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:38:27,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:38:27,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:38:27,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:38:27,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:38:27,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:38:27,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:38:27,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:38:27,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:38:27,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:38:27,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:38:27,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:38:27,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:38:27,124 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:38:27,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:38:27,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:38:27,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:38:27,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:38:27,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:38:27,126 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:27,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:27,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:38:27,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:38:27,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:38:27,128 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_ef3740ea-9113-457d-bf28-ef2902156dd4/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 -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2024-11-27 23:38:27,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:38:27,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:38:27,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:38:27,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:38:27,460 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:38:27,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-27 23:38:30,393 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/data/4a446fff1/2f2fc87971dc49cc97ce695fc4d015de/FLAG0f0530792 [2024-11-27 23:38:30,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:38:30,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-27 23:38:30,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/data/4a446fff1/2f2fc87971dc49cc97ce695fc4d015de/FLAG0f0530792 [2024-11-27 23:38:30,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/data/4a446fff1/2f2fc87971dc49cc97ce695fc4d015de [2024-11-27 23:38:30,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:38:30,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:38:30,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:30,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:38:30,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:38:30,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd18640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:30, skipping insertion in model container [2024-11-27 23:38:30,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:30" (1/1) ... [2024-11-27 23:38:30,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:38:30,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:30,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:38:30,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:31,007 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:38:31,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31 WrapperNode [2024-11-27 23:38:31,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:31,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:31,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:38:31,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:38:31,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,057 INFO L138 Inliner]: procedures = 24, calls = 54, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 355 [2024-11-27 23:38:31,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:31,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:38:31,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:38:31,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:38:31,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,089 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-27 23:38:31,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,100 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:38:31,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:38:31,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:38:31,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:38:31,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (1/1) ... [2024-11-27 23:38:31,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:31,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:31,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:38:31,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:38:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:38:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 23:38:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 23:38:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 23:38:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 23:38:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:38:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:38:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:38:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:38:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:38:31,198 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:38:31,356 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:38:31,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:38:32,144 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:38:32,145 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:38:32,871 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:38:32,871 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 23:38:32,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:32 BoogieIcfgContainer [2024-11-27 23:38:32,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:38:32,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:38:32,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:38:32,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:38:32,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:38:30" (1/3) ... [2024-11-27 23:38:32,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1440dfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:32, skipping insertion in model container [2024-11-27 23:38:32,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:31" (2/3) ... [2024-11-27 23:38:32,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1440dfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:32, skipping insertion in model container [2024-11-27 23:38:32,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:32" (3/3) ... [2024-11-27 23:38:32,886 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2024-11-27 23:38:32,907 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:38:32,909 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-commit-1.wvr.c that has 4 procedures, 66 locations, 1 initial locations, 6 loop locations, and 22 error locations. [2024-11-27 23:38:32,909 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:38:33,072 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 23:38:33,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 169 flow [2024-11-27 23:38:33,170 INFO L124 PetriNetUnfolderBase]: 9/71 cut-off events. [2024-11-27 23:38:33,172 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-27 23:38:33,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 71 events. 9/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 209 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-27 23:38:33,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 169 flow [2024-11-27 23:38:33,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 153 flow [2024-11-27 23:38:33,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:33,224 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;@218ac15f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:33,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-27 23:38:33,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:38:33,233 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-27 23:38:33,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:38:33,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:33,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 23:38:33,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:33,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1072752, now seen corresponding path program 1 times [2024-11-27 23:38:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:33,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311280264] [2024-11-27 23:38:33,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:33,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:33,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311280264] [2024-11-27 23:38:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311280264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:33,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:33,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:33,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161107526] [2024-11-27 23:38:33,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:33,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:33,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:33,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:33,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-27 23:38:33,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-27 23:38:33,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:33,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-27 23:38:33,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:35,422 INFO L124 PetriNetUnfolderBase]: 5899/8380 cut-off events. [2024-11-27 23:38:35,422 INFO L125 PetriNetUnfolderBase]: For 368/368 co-relation queries the response was YES. [2024-11-27 23:38:35,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17100 conditions, 8380 events. 5899/8380 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 43541 event pairs, 5198 based on Foata normal form. 3/5917 useless extension candidates. Maximal degree in co-relation 16423. Up to 8356 conditions per place. [2024-11-27 23:38:35,527 INFO L140 encePairwiseOnDemand]: 47/74 looper letters, 51 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2024-11-27 23:38:35,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 271 flow [2024-11-27 23:38:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-27 23:38:35,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38513513513513514 [2024-11-27 23:38:35,544 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 153 flow. Second operand 4 states and 114 transitions. [2024-11-27 23:38:35,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 271 flow [2024-11-27 23:38:35,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 262 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:35,558 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 210 flow [2024-11-27 23:38:35,561 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2024-11-27 23:38:35,564 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2024-11-27 23:38:35,565 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 210 flow [2024-11-27 23:38:35,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-27 23:38:35,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:35,565 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-27 23:38:35,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:38:35,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:35,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1894634409, now seen corresponding path program 1 times [2024-11-27 23:38:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:35,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015461293] [2024-11-27 23:38:35,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:35,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015461293] [2024-11-27 23:38:35,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015461293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173820921] [2024-11-27 23:38:35,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:35,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:35,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:35,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:35,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:38:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:35,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:38:35,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:35,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173820921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:38:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748538649] [2024-11-27 23:38:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:35,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:38:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:35,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:38:35,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:38:36,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-27 23:38:36,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-11-27 23:38:36,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:36,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-27 23:38:36,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:37,312 INFO L124 PetriNetUnfolderBase]: 5899/8377 cut-off events. [2024-11-27 23:38:37,312 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-27 23:38:37,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17022 conditions, 8377 events. 5899/8377 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 43499 event pairs, 5198 based on Foata normal form. 3/5919 useless extension candidates. Maximal degree in co-relation 16949. Up to 8341 conditions per place. [2024-11-27 23:38:37,377 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 41 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2024-11-27 23:38:37,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 314 flow [2024-11-27 23:38:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:38:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:38:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-27 23:38:37,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25900900900900903 [2024-11-27 23:38:37,380 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 210 flow. Second operand 6 states and 115 transitions. [2024-11-27 23:38:37,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 314 flow [2024-11-27 23:38:37,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:38:37,385 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 232 flow [2024-11-27 23:38:37,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-27 23:38:37,387 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2024-11-27 23:38:37,389 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 232 flow [2024-11-27 23:38:37,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-11-27 23:38:37,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:37,390 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-27 23:38:37,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:38:37,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-27 23:38:37,591 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:37,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:37,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1395874408, now seen corresponding path program 1 times [2024-11-27 23:38:37,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:37,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771623576] [2024-11-27 23:38:37,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:37,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:37,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:37,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771623576] [2024-11-27 23:38:37,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771623576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:37,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277951276] [2024-11-27 23:38:37,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:37,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:37,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:37,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:38:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:37,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:38:37,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:37,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:38,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:38,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277951276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:38:38,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:38:38,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 23:38:38,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854821033] [2024-11-27 23:38:38,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:38,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:38:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:38,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:38:38,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:38:38,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-27 23:38:38,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 232 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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) [2024-11-27 23:38:38,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:38,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-27 23:38:38,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:39,510 INFO L124 PetriNetUnfolderBase]: 5908/8413 cut-off events. [2024-11-27 23:38:39,510 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-27 23:38:39,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17163 conditions, 8413 events. 5908/8413 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 43901 event pairs, 5198 based on Foata normal form. 9/5961 useless extension candidates. Maximal degree in co-relation 16951. Up to 8356 conditions per place. [2024-11-27 23:38:39,552 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 48 selfloop transitions, 37 changer transitions 0/91 dead transitions. [2024-11-27 23:38:39,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 91 transitions, 576 flow [2024-11-27 23:38:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:38:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:38:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2024-11-27 23:38:39,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24864864864864866 [2024-11-27 23:38:39,556 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 232 flow. Second operand 10 states and 184 transitions. [2024-11-27 23:38:39,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 91 transitions, 576 flow [2024-11-27 23:38:39,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 493 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:39,561 INFO L231 Difference]: Finished difference. Result has 72 places, 91 transitions, 447 flow [2024-11-27 23:38:39,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=447, PETRI_PLACES=72, PETRI_TRANSITIONS=91} [2024-11-27 23:38:39,563 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2024-11-27 23:38:39,564 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 91 transitions, 447 flow [2024-11-27 23:38:39,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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) [2024-11-27 23:38:39,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:39,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:39,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:38:39,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:39,765 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:39,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash 230543777, now seen corresponding path program 1 times [2024-11-27 23:38:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039699362] [2024-11-27 23:38:39,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:39,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:39,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039699362] [2024-11-27 23:38:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039699362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:39,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:39,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:38:39,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886669267] [2024-11-27 23:38:39,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:39,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:39,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:39,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:39,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:39,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:39,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 91 transitions, 447 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-27 23:38:39,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:39,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:39,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:41,020 INFO L124 PetriNetUnfolderBase]: 7159/10220 cut-off events. [2024-11-27 23:38:41,020 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2024-11-27 23:38:41,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20842 conditions, 10220 events. 7159/10220 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 54712 event pairs, 2362 based on Foata normal form. 114/7379 useless extension candidates. Maximal degree in co-relation 20744. Up to 8328 conditions per place. [2024-11-27 23:38:41,073 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 102 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2024-11-27 23:38:41,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 114 transitions, 707 flow [2024-11-27 23:38:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-27 23:38:41,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-27 23:38:41,076 INFO L175 Difference]: Start difference. First operand has 72 places, 91 transitions, 447 flow. Second operand 3 states and 116 transitions. [2024-11-27 23:38:41,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 114 transitions, 707 flow [2024-11-27 23:38:41,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 114 transitions, 670 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-27 23:38:41,084 INFO L231 Difference]: Finished difference. Result has 73 places, 93 transitions, 431 flow [2024-11-27 23:38:41,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=73, PETRI_TRANSITIONS=93} [2024-11-27 23:38:41,085 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2024-11-27 23:38:41,086 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 93 transitions, 431 flow [2024-11-27 23:38:41,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-27 23:38:41,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:41,086 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:41,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:38:41,086 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:41,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1915481066, now seen corresponding path program 1 times [2024-11-27 23:38:41,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:41,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400583557] [2024-11-27 23:38:41,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:41,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400583557] [2024-11-27 23:38:41,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400583557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:41,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:41,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:41,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960110545] [2024-11-27 23:38:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:41,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:41,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:41,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:41,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:41,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:41,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 93 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-27 23:38:41,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:41,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:41,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:42,478 INFO L124 PetriNetUnfolderBase]: 6818/9770 cut-off events. [2024-11-27 23:38:42,479 INFO L125 PetriNetUnfolderBase]: For 494/494 co-relation queries the response was YES. [2024-11-27 23:38:42,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20758 conditions, 9770 events. 6818/9770 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 48902 event pairs, 2901 based on Foata normal form. 212/7642 useless extension candidates. Maximal degree in co-relation 20663. Up to 6361 conditions per place. [2024-11-27 23:38:42,537 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 104 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-11-27 23:38:42,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 115 transitions, 692 flow [2024-11-27 23:38:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-27 23:38:42,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-27 23:38:42,539 INFO L175 Difference]: Start difference. First operand has 73 places, 93 transitions, 431 flow. Second operand 3 states and 116 transitions. [2024-11-27 23:38:42,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 115 transitions, 692 flow [2024-11-27 23:38:42,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:42,545 INFO L231 Difference]: Finished difference. Result has 75 places, 93 transitions, 438 flow [2024-11-27 23:38:42,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=75, PETRI_TRANSITIONS=93} [2024-11-27 23:38:42,547 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2024-11-27 23:38:42,549 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 93 transitions, 438 flow [2024-11-27 23:38:42,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-27 23:38:42,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:42,550 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:42,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:38:42,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:42,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:42,551 INFO L85 PathProgramCache]: Analyzing trace with hash -533773728, now seen corresponding path program 1 times [2024-11-27 23:38:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602574096] [2024-11-27 23:38:42,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:42,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:42,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:42,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602574096] [2024-11-27 23:38:42,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602574096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:42,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:42,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:42,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435530098] [2024-11-27 23:38:42,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:42,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:42,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:42,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:42,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:42,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:42,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 93 transitions, 438 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-27 23:38:42,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:42,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:42,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:43,841 INFO L124 PetriNetUnfolderBase]: 7435/10773 cut-off events. [2024-11-27 23:38:43,841 INFO L125 PetriNetUnfolderBase]: For 781/781 co-relation queries the response was YES. [2024-11-27 23:38:43,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23515 conditions, 10773 events. 7435/10773 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 55920 event pairs, 6755 based on Foata normal form. 112/8584 useless extension candidates. Maximal degree in co-relation 23362. Up to 9739 conditions per place. [2024-11-27 23:38:43,883 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 100 selfloop transitions, 9 changer transitions 25/143 dead transitions. [2024-11-27 23:38:43,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 143 transitions, 941 flow [2024-11-27 23:38:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:38:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:38:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-27 23:38:43,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42702702702702705 [2024-11-27 23:38:43,885 INFO L175 Difference]: Start difference. First operand has 75 places, 93 transitions, 438 flow. Second operand 5 states and 158 transitions. [2024-11-27 23:38:43,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 143 transitions, 941 flow [2024-11-27 23:38:43,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 143 transitions, 939 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:43,896 INFO L231 Difference]: Finished difference. Result has 80 places, 99 transitions, 523 flow [2024-11-27 23:38:43,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=523, PETRI_PLACES=80, PETRI_TRANSITIONS=99} [2024-11-27 23:38:43,899 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 10 predicate places. [2024-11-27 23:38:43,901 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 99 transitions, 523 flow [2024-11-27 23:38:43,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-27 23:38:43,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:43,901 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-27 23:38:43,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:38:43,901 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:43,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1620197135, now seen corresponding path program 2 times [2024-11-27 23:38:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430408706] [2024-11-27 23:38:43,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:43,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:43,920 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:38:43,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:38:43,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:43,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430408706] [2024-11-27 23:38:43,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430408706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:43,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904393245] [2024-11-27 23:38:43,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:43,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:43,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:43,966 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:43,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:38:44,058 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:38:44,058 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:44,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:38:44,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:38:44,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:38:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904393245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:38:44,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:38:44,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 23:38:44,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816113982] [2024-11-27 23:38:44,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:44,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:44,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:44,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:44,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-27 23:38:44,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 99 transitions, 523 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-11-27 23:38:44,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:44,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-27 23:38:44,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:45,119 INFO L124 PetriNetUnfolderBase]: 7434/10765 cut-off events. [2024-11-27 23:38:45,119 INFO L125 PetriNetUnfolderBase]: For 1156/1156 co-relation queries the response was YES. [2024-11-27 23:38:45,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23853 conditions, 10765 events. 7434/10765 cut-off events. For 1156/1156 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 56585 event pairs, 6755 based on Foata normal form. 5/8458 useless extension candidates. Maximal degree in co-relation 23720. Up to 10653 conditions per place. [2024-11-27 23:38:45,170 INFO L140 encePairwiseOnDemand]: 63/74 looper letters, 47 selfloop transitions, 36 changer transitions 7/96 dead transitions. [2024-11-27 23:38:45,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 96 transitions, 673 flow [2024-11-27 23:38:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-27 23:38:45,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28716216216216217 [2024-11-27 23:38:45,173 INFO L175 Difference]: Start difference. First operand has 80 places, 99 transitions, 523 flow. Second operand 4 states and 85 transitions. [2024-11-27 23:38:45,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 96 transitions, 673 flow [2024-11-27 23:38:45,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 96 transitions, 637 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:45,185 INFO L231 Difference]: Finished difference. Result has 75 places, 89 transitions, 464 flow [2024-11-27 23:38:45,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=464, PETRI_PLACES=75, PETRI_TRANSITIONS=89} [2024-11-27 23:38:45,186 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2024-11-27 23:38:45,187 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 89 transitions, 464 flow [2024-11-27 23:38:45,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-11-27 23:38:45,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:45,188 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:45,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:38:45,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 23:38:45,393 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:45,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1298809945, now seen corresponding path program 1 times [2024-11-27 23:38:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015930706] [2024-11-27 23:38:45,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:45,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015930706] [2024-11-27 23:38:45,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015930706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290463594] [2024-11-27 23:38:45,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:45,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:45,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:45,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:45,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:38:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:45,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:38:45,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:45,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:45,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290463594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:45,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:45,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-27 23:38:45,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703759579] [2024-11-27 23:38:45,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:45,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:45,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:45,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:45,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:38:45,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:45,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 89 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-27 23:38:45,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:45,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:45,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:46,324 INFO L124 PetriNetUnfolderBase]: 4794/6906 cut-off events. [2024-11-27 23:38:46,325 INFO L125 PetriNetUnfolderBase]: For 841/841 co-relation queries the response was YES. [2024-11-27 23:38:46,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15139 conditions, 6906 events. 4794/6906 cut-off events. For 841/841 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 33819 event pairs, 4276 based on Foata normal form. 448/5971 useless extension candidates. Maximal degree in co-relation 14899. Up to 6880 conditions per place. [2024-11-27 23:38:46,349 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 78 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2024-11-27 23:38:46,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 85 transitions, 610 flow [2024-11-27 23:38:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-27 23:38:46,351 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4099099099099099 [2024-11-27 23:38:46,351 INFO L175 Difference]: Start difference. First operand has 75 places, 89 transitions, 464 flow. Second operand 3 states and 91 transitions. [2024-11-27 23:38:46,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 85 transitions, 610 flow [2024-11-27 23:38:46,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 522 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-27 23:38:46,358 INFO L231 Difference]: Finished difference. Result has 66 places, 85 transitions, 366 flow [2024-11-27 23:38:46,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=66, PETRI_TRANSITIONS=85} [2024-11-27 23:38:46,358 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2024-11-27 23:38:46,359 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 85 transitions, 366 flow [2024-11-27 23:38:46,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-27 23:38:46,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:46,359 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:46,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:38:46,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:46,560 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:46,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1608403790, now seen corresponding path program 1 times [2024-11-27 23:38:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082600341] [2024-11-27 23:38:46,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:46,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:46,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082600341] [2024-11-27 23:38:46,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082600341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:46,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:46,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972304305] [2024-11-27 23:38:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:46,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:46,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:46,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:46,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 85 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-27 23:38:46,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:46,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:46,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:47,222 INFO L124 PetriNetUnfolderBase]: 3764/5468 cut-off events. [2024-11-27 23:38:47,223 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-27 23:38:47,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11985 conditions, 5468 events. 3764/5468 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 25169 event pairs, 1727 based on Foata normal form. 124/4475 useless extension candidates. Maximal degree in co-relation 11971. Up to 4119 conditions per place. [2024-11-27 23:38:47,247 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 94 selfloop transitions, 2 changer transitions 6/108 dead transitions. [2024-11-27 23:38:47,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 626 flow [2024-11-27 23:38:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-27 23:38:47,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5135135135135135 [2024-11-27 23:38:47,248 INFO L175 Difference]: Start difference. First operand has 66 places, 85 transitions, 366 flow. Second operand 3 states and 114 transitions. [2024-11-27 23:38:47,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 626 flow [2024-11-27 23:38:47,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:47,253 INFO L231 Difference]: Finished difference. Result has 68 places, 86 transitions, 379 flow [2024-11-27 23:38:47,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=68, PETRI_TRANSITIONS=86} [2024-11-27 23:38:47,255 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2024-11-27 23:38:47,255 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 86 transitions, 379 flow [2024-11-27 23:38:47,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-27 23:38:47,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:47,255 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:47,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:38:47,256 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:47,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash 830998500, now seen corresponding path program 1 times [2024-11-27 23:38:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615149085] [2024-11-27 23:38:47,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:47,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:47,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615149085] [2024-11-27 23:38:47,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615149085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:47,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:47,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:47,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496515891] [2024-11-27 23:38:47,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:47,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:47,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:47,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:47,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:47,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:47,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 86 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:38:47,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:47,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:47,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:48,102 INFO L124 PetriNetUnfolderBase]: 4499/6623 cut-off events. [2024-11-27 23:38:48,103 INFO L125 PetriNetUnfolderBase]: For 749/749 co-relation queries the response was YES. [2024-11-27 23:38:48,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14888 conditions, 6623 events. 4499/6623 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 32243 event pairs, 4052 based on Foata normal form. 20/5448 useless extension candidates. Maximal degree in co-relation 14872. Up to 5411 conditions per place. [2024-11-27 23:38:48,125 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 66 selfloop transitions, 13 changer transitions 23/108 dead transitions. [2024-11-27 23:38:48,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 108 transitions, 637 flow [2024-11-27 23:38:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:38:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:38:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-11-27 23:38:48,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4027027027027027 [2024-11-27 23:38:48,126 INFO L175 Difference]: Start difference. First operand has 68 places, 86 transitions, 379 flow. Second operand 5 states and 149 transitions. [2024-11-27 23:38:48,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 108 transitions, 637 flow [2024-11-27 23:38:48,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 108 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:48,130 INFO L231 Difference]: Finished difference. Result has 72 places, 85 transitions, 412 flow [2024-11-27 23:38:48,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=412, PETRI_PLACES=72, PETRI_TRANSITIONS=85} [2024-11-27 23:38:48,131 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2024-11-27 23:38:48,131 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 85 transitions, 412 flow [2024-11-27 23:38:48,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:38:48,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:48,131 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:48,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:38:48,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:48,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:48,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1293849156, now seen corresponding path program 1 times [2024-11-27 23:38:48,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:48,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661943974] [2024-11-27 23:38:48,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:48,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:38:48,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:48,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661943974] [2024-11-27 23:38:48,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661943974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314604849] [2024-11-27 23:38:48,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:48,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:48,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:48,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:38:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:48,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:38:48,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:48,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:48,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314604849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:48,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:48,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 23:38:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162253821] [2024-11-27 23:38:48,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:48,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:48,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:48,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:48,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:38:48,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:48,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 85 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-27 23:38:48,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:48,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:48,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:49,060 INFO L124 PetriNetUnfolderBase]: 3132/4575 cut-off events. [2024-11-27 23:38:49,061 INFO L125 PetriNetUnfolderBase]: For 743/743 co-relation queries the response was YES. [2024-11-27 23:38:49,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10368 conditions, 4575 events. 3132/4575 cut-off events. For 743/743 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 20720 event pairs, 2748 based on Foata normal form. 108/3955 useless extension candidates. Maximal degree in co-relation 10350. Up to 4549 conditions per place. [2024-11-27 23:38:49,075 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 76 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2024-11-27 23:38:49,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 83 transitions, 558 flow [2024-11-27 23:38:49,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-27 23:38:49,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3918918918918919 [2024-11-27 23:38:49,076 INFO L175 Difference]: Start difference. First operand has 72 places, 85 transitions, 412 flow. Second operand 3 states and 87 transitions. [2024-11-27 23:38:49,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 83 transitions, 558 flow [2024-11-27 23:38:49,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 83 transitions, 530 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-27 23:38:49,080 INFO L231 Difference]: Finished difference. Result has 69 places, 83 transitions, 378 flow [2024-11-27 23:38:49,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=69, PETRI_TRANSITIONS=83} [2024-11-27 23:38:49,080 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places. [2024-11-27 23:38:49,081 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 83 transitions, 378 flow [2024-11-27 23:38:49,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-27 23:38:49,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:49,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:49,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:38:49,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:49,281 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:49,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1998680417, now seen corresponding path program 1 times [2024-11-27 23:38:49,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:49,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736540398] [2024-11-27 23:38:49,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:49,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:49,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:49,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736540398] [2024-11-27 23:38:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736540398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:49,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:49,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344596505] [2024-11-27 23:38:49,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:49,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:49,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:49,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:49,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:38:49,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:49,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 83 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-27 23:38:49,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:49,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:49,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:50,087 INFO L124 PetriNetUnfolderBase]: 3909/5815 cut-off events. [2024-11-27 23:38:50,088 INFO L125 PetriNetUnfolderBase]: For 675/675 co-relation queries the response was YES. [2024-11-27 23:38:50,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12964 conditions, 5815 events. 3909/5815 cut-off events. For 675/675 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 27835 event pairs, 3518 based on Foata normal form. 28/4901 useless extension candidates. Maximal degree in co-relation 12947. Up to 4533 conditions per place. [2024-11-27 23:38:50,100 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 70 selfloop transitions, 6 changer transitions 41/123 dead transitions. [2024-11-27 23:38:50,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 123 transitions, 758 flow [2024-11-27 23:38:50,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2024-11-27 23:38:50,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4527027027027027 [2024-11-27 23:38:50,101 INFO L175 Difference]: Start difference. First operand has 69 places, 83 transitions, 378 flow. Second operand 4 states and 134 transitions. [2024-11-27 23:38:50,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 123 transitions, 758 flow [2024-11-27 23:38:50,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 757 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:38:50,106 INFO L231 Difference]: Finished difference. Result has 72 places, 82 transitions, 394 flow [2024-11-27 23:38:50,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=72, PETRI_TRANSITIONS=82} [2024-11-27 23:38:50,106 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2024-11-27 23:38:50,106 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 82 transitions, 394 flow [2024-11-27 23:38:50,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-27 23:38:50,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:50,107 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:50,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:38:50,107 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:50,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:50,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1752328922, now seen corresponding path program 1 times [2024-11-27 23:38:50,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:50,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606154518] [2024-11-27 23:38:50,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:50,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606154518] [2024-11-27 23:38:50,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606154518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034931823] [2024-11-27 23:38:50,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:50,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:50,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:50,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:50,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:38:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:50,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:38:50,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:38:50,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034931823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:50,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:50,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 8 [2024-11-27 23:38:50,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207275542] [2024-11-27 23:38:50,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:50,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:50,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:50,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:38:50,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:50,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 82 transitions, 394 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-11-27 23:38:50,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:50,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:50,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:51,566 INFO L124 PetriNetUnfolderBase]: 6683/9669 cut-off events. [2024-11-27 23:38:51,566 INFO L125 PetriNetUnfolderBase]: For 2077/2077 co-relation queries the response was YES. [2024-11-27 23:38:51,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22450 conditions, 9669 events. 6683/9669 cut-off events. For 2077/2077 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 45747 event pairs, 3481 based on Foata normal form. 180/8267 useless extension candidates. Maximal degree in co-relation 22431. Up to 3646 conditions per place. [2024-11-27 23:38:51,596 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 118 selfloop transitions, 8 changer transitions 0/132 dead transitions. [2024-11-27 23:38:51,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 132 transitions, 792 flow [2024-11-27 23:38:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:38:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-11-27 23:38:51,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5067567567567568 [2024-11-27 23:38:51,598 INFO L175 Difference]: Start difference. First operand has 72 places, 82 transitions, 394 flow. Second operand 4 states and 150 transitions. [2024-11-27 23:38:51,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 132 transitions, 792 flow [2024-11-27 23:38:51,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 132 transitions, 761 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-27 23:38:51,606 INFO L231 Difference]: Finished difference. Result has 73 places, 88 transitions, 434 flow [2024-11-27 23:38:51,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=434, PETRI_PLACES=73, PETRI_TRANSITIONS=88} [2024-11-27 23:38:51,607 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2024-11-27 23:38:51,607 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 88 transitions, 434 flow [2024-11-27 23:38:51,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-11-27 23:38:51,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:51,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:51,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:38:51,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 23:38:51,812 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:51,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash 859956877, now seen corresponding path program 1 times [2024-11-27 23:38:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:51,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395727199] [2024-11-27 23:38:51,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:51,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:52,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:52,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395727199] [2024-11-27 23:38:52,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395727199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:52,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261749027] [2024-11-27 23:38:52,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:52,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:52,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:52,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:52,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:38:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:52,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:38:52,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:52,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:38:52,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261749027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:38:52,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:38:52,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-11-27 23:38:52,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945558794] [2024-11-27 23:38:52,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:52,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:38:52,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:52,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:38:52,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:38:52,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-27 23:38:52,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 88 transitions, 434 flow. Second operand has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 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) [2024-11-27 23:38:52,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:52,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-27 23:38:52,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:54,719 INFO L124 PetriNetUnfolderBase]: 9464/14175 cut-off events. [2024-11-27 23:38:54,719 INFO L125 PetriNetUnfolderBase]: For 6116/6116 co-relation queries the response was YES. [2024-11-27 23:38:54,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34592 conditions, 14175 events. 9464/14175 cut-off events. For 6116/6116 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 75665 event pairs, 8206 based on Foata normal form. 385/12245 useless extension candidates. Maximal degree in co-relation 34573. Up to 9617 conditions per place. [2024-11-27 23:38:54,750 INFO L140 encePairwiseOnDemand]: 60/74 looper letters, 47 selfloop transitions, 33 changer transitions 161/247 dead transitions. [2024-11-27 23:38:54,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 247 transitions, 1548 flow [2024-11-27 23:38:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:38:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-27 23:38:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 340 transitions. [2024-11-27 23:38:54,752 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24182076813655762 [2024-11-27 23:38:54,753 INFO L175 Difference]: Start difference. First operand has 73 places, 88 transitions, 434 flow. Second operand 19 states and 340 transitions. [2024-11-27 23:38:54,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 247 transitions, 1548 flow [2024-11-27 23:38:54,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 247 transitions, 1534 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-27 23:38:54,764 INFO L231 Difference]: Finished difference. Result has 96 places, 86 transitions, 504 flow [2024-11-27 23:38:54,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=504, PETRI_PLACES=96, PETRI_TRANSITIONS=86} [2024-11-27 23:38:54,764 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 26 predicate places. [2024-11-27 23:38:54,764 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 86 transitions, 504 flow [2024-11-27 23:38:54,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 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) [2024-11-27 23:38:54,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:38:54,765 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:54,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:38:54,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 23:38:54,966 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-27 23:38:54,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:54,966 INFO L85 PathProgramCache]: Analyzing trace with hash -631306817, now seen corresponding path program 2 times [2024-11-27 23:38:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461206195] [2024-11-27 23:38:54,967 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:54,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:54,994 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:38:54,995 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 23:38:55,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:55,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461206195] [2024-11-27 23:38:55,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461206195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:55,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:55,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:55,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846662198] [2024-11-27 23:38:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:55,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:55,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:55,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:55,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:55,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-27 23:38:55,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-27 23:38:55,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:38:55,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-27 23:38:55,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:38:55,806 INFO L124 PetriNetUnfolderBase]: 5262/7651 cut-off events. [2024-11-27 23:38:55,807 INFO L125 PetriNetUnfolderBase]: For 5342/5342 co-relation queries the response was YES. [2024-11-27 23:38:55,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19554 conditions, 7651 events. 5262/7651 cut-off events. For 5342/5342 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 35735 event pairs, 4517 based on Foata normal form. 252/6841 useless extension candidates. Maximal degree in co-relation 19528. Up to 7625 conditions per place. [2024-11-27 23:38:55,828 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2024-11-27 23:38:55,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 650 flow [2024-11-27 23:38:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:38:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-27 23:38:55,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38288288288288286 [2024-11-27 23:38:55,829 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 504 flow. Second operand 3 states and 85 transitions. [2024-11-27 23:38:55,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 650 flow [2024-11-27 23:38:55,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 624 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-11-27 23:38:55,849 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2024-11-27 23:38:55,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=82, PETRI_TRANSITIONS=0} [2024-11-27 23:38:55,849 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 12 predicate places. [2024-11-27 23:38:55,849 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2024-11-27 23:38:55,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-27 23:38:55,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2024-11-27 23:38:55,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2024-11-27 23:38:55,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2024-11-27 23:38:55,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2024-11-27 23:38:55,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2024-11-27 23:38:55,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2024-11-27 23:38:55,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2024-11-27 23:38:55,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:38:55,857 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:55,863 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:38:55,864 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:38:55,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:38:55 BasicIcfg [2024-11-27 23:38:55,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:38:55,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:38:55,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:38:55,873 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:38:55,877 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:32" (3/4) ... [2024-11-27 23:38:55,878 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:38:55,881 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 23:38:55,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 23:38:55,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-27 23:38:55,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 183 nodes and edges [2024-11-27 23:38:55,896 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-27 23:38:55,896 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-27 23:38:55,896 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:38:56,004 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:38:56,005 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:38:56,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:38:56,008 INFO L158 Benchmark]: Toolchain (without parser) took 25291.78ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.4MB in the beginning and 570.0MB in the end (delta: -478.7MB). Peak memory consumption was 649.5MB. Max. memory is 16.1GB. [2024-11-27 23:38:56,009 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 71.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:38:56,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.74ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 78.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:38:56,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.58ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:38:56,010 INFO L158 Benchmark]: Boogie Preprocessor took 64.83ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 73.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:38:56,011 INFO L158 Benchmark]: RCFGBuilder took 1748.32ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 125.6MB in the end (delta: -52.6MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2024-11-27 23:38:56,012 INFO L158 Benchmark]: TraceAbstraction took 22996.74ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 124.8MB in the beginning and 574.2MB in the end (delta: -449.4MB). Peak memory consumption was 632.4MB. Max. memory is 16.1GB. [2024-11-27 23:38:56,012 INFO L158 Benchmark]: Witness Printer took 132.55ms. Allocated memory is still 1.2GB. Free memory was 574.2MB in the beginning and 570.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:38:56,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 71.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.74ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 78.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.58ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.83ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 73.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1748.32ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 125.6MB in the end (delta: -52.6MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22996.74ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 124.8MB in the beginning and 574.2MB in the end (delta: -449.4MB). Peak memory consumption was 632.4MB. Max. memory is 16.1GB. * Witness Printer took 132.55ms. Allocated memory is still 1.2GB. Free memory was 574.2MB in the beginning and 570.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 41 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.7s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 547 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2367 IncrementalHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 42 mSDtfsCounter, 2367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=523occurred in iteration=6, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 404 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 1374 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1340 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 98/139 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:38:56,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3740ea-9113-457d-bf28-ef2902156dd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE