./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd --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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:31:16,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:31:16,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:31:16,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:31:16,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:31:16,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:31:16,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:31:16,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:31:16,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:31:16,446 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:31:16,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:31:16,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:31:16,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:31:16,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:31:16,447 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:31:16,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:31:16,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:31:16,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:31:16,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:31:16,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:31:16,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:31:16,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:31:16,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:31:16,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:31:16,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:31:16,451 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:31:16,451 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:31:16,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:31:16,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:31:16,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:31:16,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:31:16,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:31:16,455 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_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd 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 -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2024-11-13 14:31:16,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:31:16,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:31:16,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:31:16,769 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:31:16,772 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:31:16,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i Unable to find full path for "g++" [2024-11-13 14:31:18,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:31:19,196 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:31:19,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2024-11-13 14:31:19,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/data/dae741429/27722785dde549a3b5ae8cb9b3e6a4e6/FLAG0f45f42be [2024-11-13 14:31:19,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/data/dae741429/27722785dde549a3b5ae8cb9b3e6a4e6 [2024-11-13 14:31:19,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:31:19,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:31:19,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:31:19,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:31:19,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:31:19,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:19" (1/1) ... [2024-11-13 14:31:19,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e451065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:19, skipping insertion in model container [2024-11-13 14:31:19,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:19" (1/1) ... [2024-11-13 14:31:19,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:31:20,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:31:20,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:31:20,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:31:20,733 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:31:20,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20 WrapperNode [2024-11-13 14:31:20,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:31:20,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:31:20,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:31:20,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:31:20,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:20,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:20,937 INFO L138 Inliner]: procedures = 491, calls = 162, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1972 [2024-11-13 14:31:20,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:31:20,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:31:20,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:31:20,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:31:20,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:20,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:20,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,056 INFO L175 MemorySlicer]: Split 314 memory accesses to 9 slices as follows [2, 80, 8, 2, 6, 198, 4, 12, 2]. 63 percent of accesses are in the largest equivalence class. The 57 initializations are split as follows [2, 20, 2, 0, 0, 29, 0, 4, 0]. The 95 writes are split as follows [0, 20, 2, 1, 4, 61, 2, 4, 1]. [2024-11-13 14:31:21,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:31:21,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:31:21,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:31:21,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:31:21,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (1/1) ... [2024-11-13 14:31:21,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:31:21,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:21,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:21,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:31:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2024-11-13 14:31:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2024-11-13 14:31:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:31:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:31:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:31:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:31:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 14:31:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 14:31:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-13 14:31:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:31:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:31:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-13 14:31:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:31:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 14:31:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 14:31:21,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-13 14:31:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:31:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:31:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:31:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:31:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:31:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:31:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:31:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 14:31:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 14:31:21,324 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:31:21,911 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:31:21,913 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:31:25,174 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:31:25,175 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:31:27,145 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:31:27,146 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-13 14:31:27,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:31:27 BoogieIcfgContainer [2024-11-13 14:31:27,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:31:27,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:31:27,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:31:27,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:31:27,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:31:19" (1/3) ... [2024-11-13 14:31:27,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70851876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:31:27, skipping insertion in model container [2024-11-13 14:31:27,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:20" (2/3) ... [2024-11-13 14:31:27,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70851876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:31:27, skipping insertion in model container [2024-11-13 14:31:27,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:31:27" (3/3) ... [2024-11-13 14:31:27,161 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2024-11-13 14:31:27,181 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:31:27,186 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG workstealqueue_mutex-2.i that has 2 procedures, 400 locations, 1 initial locations, 11 loop locations, and 90 error locations. [2024-11-13 14:31:27,186 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:31:27,403 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 14:31:27,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 452 transitions, 911 flow [2024-11-13 14:31:27,885 INFO L124 PetriNetUnfolderBase]: 97/838 cut-off events. [2024-11-13 14:31:27,889 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:31:27,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 838 events. 97/838 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4533 event pairs, 0 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 429. Up to 6 conditions per place. [2024-11-13 14:31:27,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 452 transitions, 911 flow [2024-11-13 14:31:27,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 452 transitions, 911 flow [2024-11-13 14:31:27,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:31:27,964 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;@4682eac9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:31:27,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2024-11-13 14:31:27,976 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:31:27,976 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 14:31:27,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:31:27,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:31:27,978 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 14:31:27,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:31:27,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 159808944, now seen corresponding path program 1 times [2024-11-13 14:31:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:27,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144973379] [2024-11-13 14:31:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:28,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144973379] [2024-11-13 14:31:28,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144973379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:28,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:28,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:31:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763486063] [2024-11-13 14:31:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:28,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:31:28,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:31:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:31:28,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 452 [2024-11-13 14:31:28,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 452 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2024-11-13 14:31:28,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:31:28,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 452 [2024-11-13 14:31:28,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:31:32,840 INFO L124 PetriNetUnfolderBase]: 6216/14262 cut-off events. [2024-11-13 14:31:32,841 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:31:32,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25091 conditions, 14262 events. 6216/14262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 110035 event pairs, 4179 based on Foata normal form. 1/12198 useless extension candidates. Maximal degree in co-relation 24423. Up to 10819 conditions per place. [2024-11-13 14:31:32,934 INFO L140 encePairwiseOnDemand]: 448/452 looper letters, 281 selfloop transitions, 2 changer transitions 0/450 dead transitions. [2024-11-13 14:31:32,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 450 transitions, 1473 flow [2024-11-13 14:31:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:31:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:31:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-11-13 14:31:32,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5796460176991151 [2024-11-13 14:31:32,963 INFO L175 Difference]: Start difference. First operand has 403 places, 452 transitions, 911 flow. Second operand 3 states and 786 transitions. [2024-11-13 14:31:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 450 transitions, 1473 flow [2024-11-13 14:31:32,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 450 transitions, 1473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:31:32,997 INFO L231 Difference]: Finished difference. Result has 403 places, 450 transitions, 911 flow [2024-11-13 14:31:33,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=403, PETRI_TRANSITIONS=450} [2024-11-13 14:31:33,006 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 0 predicate places. [2024-11-13 14:31:33,008 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 450 transitions, 911 flow [2024-11-13 14:31:33,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2024-11-13 14:31:33,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:31:33,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:33,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:31:33,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:31:33,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1797299698, now seen corresponding path program 1 times [2024-11-13 14:31:33,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:33,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514221303] [2024-11-13 14:31:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:33,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:33,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514221303] [2024-11-13 14:31:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514221303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:31:33,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827602052] [2024-11-13 14:31:33,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:33,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:31:33,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:31:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:31:33,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 452 [2024-11-13 14:31:33,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 450 transitions, 911 flow. Second operand has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2024-11-13 14:31:33,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:31:33,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 452 [2024-11-13 14:31:33,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:31:39,396 INFO L124 PetriNetUnfolderBase]: 12117/26839 cut-off events. [2024-11-13 14:31:39,396 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:31:39,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47655 conditions, 26839 events. 12117/26839 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 208202 event pairs, 4074 based on Foata normal form. 110/23335 useless extension candidates. Maximal degree in co-relation 47636. Up to 10537 conditions per place. [2024-11-13 14:31:39,534 INFO L140 encePairwiseOnDemand]: 430/452 looper letters, 541 selfloop transitions, 13 changer transitions 2/715 dead transitions. [2024-11-13 14:31:39,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 715 transitions, 2553 flow [2024-11-13 14:31:39,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:31:39,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:31:39,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1214 transitions. [2024-11-13 14:31:39,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714601769911505 [2024-11-13 14:31:39,543 INFO L175 Difference]: Start difference. First operand has 403 places, 450 transitions, 911 flow. Second operand 4 states and 1214 transitions. [2024-11-13 14:31:39,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 715 transitions, 2553 flow [2024-11-13 14:31:39,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 715 transitions, 2549 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:31:39,567 INFO L231 Difference]: Finished difference. Result has 406 places, 454 transitions, 981 flow [2024-11-13 14:31:39,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=981, PETRI_PLACES=406, PETRI_TRANSITIONS=454} [2024-11-13 14:31:39,569 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 3 predicate places. [2024-11-13 14:31:39,570 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 454 transitions, 981 flow [2024-11-13 14:31:39,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2024-11-13 14:31:39,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:31:39,571 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:39,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:31:39,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:31:39,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2007245513, now seen corresponding path program 1 times [2024-11-13 14:31:39,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:39,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094292521] [2024-11-13 14:31:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:39,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:39,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:39,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094292521] [2024-11-13 14:31:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094292521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:31:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434537209] [2024-11-13 14:31:39,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:39,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:31:39,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:39,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:31:39,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:31:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:40,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:31:40,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:40,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:31:40,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434537209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:40,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:31:40,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 14:31:40,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127592103] [2024-11-13 14:31:40,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:40,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:31:40,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:40,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:31:40,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:31:40,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 452 [2024-11-13 14:31:40,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 454 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 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) [2024-11-13 14:31:40,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:31:40,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 452 [2024-11-13 14:31:40,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:31:47,154 INFO L124 PetriNetUnfolderBase]: 12117/26837 cut-off events. [2024-11-13 14:31:47,154 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-13 14:31:47,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48040 conditions, 26837 events. 12117/26837 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 208147 event pairs, 4074 based on Foata normal form. 1/23315 useless extension candidates. Maximal degree in co-relation 48005. Up to 10387 conditions per place. [2024-11-13 14:31:47,268 INFO L140 encePairwiseOnDemand]: 435/452 looper letters, 561 selfloop transitions, 18 changer transitions 1/739 dead transitions. [2024-11-13 14:31:47,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 739 transitions, 2709 flow [2024-11-13 14:31:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:31:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:31:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1547 transitions. [2024-11-13 14:31:47,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5704277286135693 [2024-11-13 14:31:47,279 INFO L175 Difference]: Start difference. First operand has 406 places, 454 transitions, 981 flow. Second operand 6 states and 1547 transitions. [2024-11-13 14:31:47,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 739 transitions, 2709 flow [2024-11-13 14:31:47,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 739 transitions, 2709 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:31:47,296 INFO L231 Difference]: Finished difference. Result has 409 places, 453 transitions, 1013 flow [2024-11-13 14:31:47,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1013, PETRI_PLACES=409, PETRI_TRANSITIONS=453} [2024-11-13 14:31:47,297 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 6 predicate places. [2024-11-13 14:31:47,297 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 453 transitions, 1013 flow [2024-11-13 14:31:47,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 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) [2024-11-13 14:31:47,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:31:47,300 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:47,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:47,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:31:47,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:31:47,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:47,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2095074067, now seen corresponding path program 1 times [2024-11-13 14:31:47,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:47,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108563750] [2024-11-13 14:31:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:31:47,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:47,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108563750] [2024-11-13 14:31:47,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108563750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:47,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:47,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:31:47,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943701556] [2024-11-13 14:31:47,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:47,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:31:47,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:31:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:31:47,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 452 [2024-11-13 14:31:47,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 453 transitions, 1013 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2024-11-13 14:31:47,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:31:47,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 452 [2024-11-13 14:31:47,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:31:52,806 INFO L124 PetriNetUnfolderBase]: 11961/26691 cut-off events. [2024-11-13 14:31:52,806 INFO L125 PetriNetUnfolderBase]: For 452/452 co-relation queries the response was YES. [2024-11-13 14:31:52,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47812 conditions, 26691 events. 11961/26691 cut-off events. For 452/452 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 208239 event pairs, 8127 based on Foata normal form. 1/23183 useless extension candidates. Maximal degree in co-relation 47775. Up to 20515 conditions per place. [2024-11-13 14:31:52,907 INFO L140 encePairwiseOnDemand]: 449/452 looper letters, 283 selfloop transitions, 4 changer transitions 0/452 dead transitions. [2024-11-13 14:31:52,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 452 transitions, 1583 flow [2024-11-13 14:31:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:31:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:31:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2024-11-13 14:31:52,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5781710914454278 [2024-11-13 14:31:52,912 INFO L175 Difference]: Start difference. First operand has 409 places, 453 transitions, 1013 flow. Second operand 3 states and 784 transitions. [2024-11-13 14:31:52,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 452 transitions, 1583 flow [2024-11-13 14:31:52,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 452 transitions, 1551 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-13 14:31:52,930 INFO L231 Difference]: Finished difference. Result has 406 places, 452 transitions, 985 flow [2024-11-13 14:31:52,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=985, PETRI_PLACES=406, PETRI_TRANSITIONS=452} [2024-11-13 14:31:52,932 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 3 predicate places. [2024-11-13 14:31:52,932 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 452 transitions, 985 flow [2024-11-13 14:31:52,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2024-11-13 14:31:52,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:31:52,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:52,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:31:52,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:31:52,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:52,935 INFO L85 PathProgramCache]: Analyzing trace with hash -962044207, now seen corresponding path program 1 times [2024-11-13 14:31:52,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:52,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133732935] [2024-11-13 14:31:52,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:52,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:53,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:53,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133732935] [2024-11-13 14:31:53,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133732935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:31:53,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632896046] [2024-11-13 14:31:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:53,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:31:53,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:53,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:31:53,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:31:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:53,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:31:53,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:53,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:31:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:53,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632896046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:31:53,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:31:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 14:31:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995489345] [2024-11-13 14:31:53,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:31:53,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:31:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:31:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:31:53,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 452 [2024-11-13 14:31:53,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 452 transitions, 985 flow. Second operand has 10 states, 10 states have (on average 161.9) internal successors, (1619), 10 states have internal predecessors, (1619), 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) [2024-11-13 14:31:53,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:31:53,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 452 [2024-11-13 14:31:53,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:32:00,348 INFO L124 PetriNetUnfolderBase]: 12091/26786 cut-off events. [2024-11-13 14:32:00,348 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2024-11-13 14:32:00,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47885 conditions, 26786 events. 12091/26786 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 207356 event pairs, 4095 based on Foata normal form. 68/23334 useless extension candidates. Maximal degree in co-relation 47833. Up to 10318 conditions per place. [2024-11-13 14:32:00,465 INFO L140 encePairwiseOnDemand]: 428/452 looper letters, 579 selfloop transitions, 27 changer transitions 1/765 dead transitions. [2024-11-13 14:32:00,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 765 transitions, 2825 flow [2024-11-13 14:32:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:32:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 14:32:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1892 transitions. [2024-11-13 14:32:00,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5232300884955752 [2024-11-13 14:32:00,474 INFO L175 Difference]: Start difference. First operand has 406 places, 452 transitions, 985 flow. Second operand 8 states and 1892 transitions. [2024-11-13 14:32:00,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 765 transitions, 2825 flow [2024-11-13 14:32:00,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 765 transitions, 2811 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:32:00,488 INFO L231 Difference]: Finished difference. Result has 409 places, 456 transitions, 1065 flow [2024-11-13 14:32:00,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1065, PETRI_PLACES=409, PETRI_TRANSITIONS=456} [2024-11-13 14:32:00,490 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 6 predicate places. [2024-11-13 14:32:00,490 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 456 transitions, 1065 flow [2024-11-13 14:32:00,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 161.9) internal successors, (1619), 10 states have internal predecessors, (1619), 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) [2024-11-13 14:32:00,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:32:00,492 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:32:00,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:32:00,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:32:00,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:32:00,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1464027377, now seen corresponding path program 2 times [2024-11-13 14:32:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:00,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413804357] [2024-11-13 14:32:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:32:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:32:00,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413804357] [2024-11-13 14:32:00,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413804357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:32:00,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:32:00,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:32:00,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582953397] [2024-11-13 14:32:00,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:32:00,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:32:00,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:32:00,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:32:00,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:32:01,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 452 [2024-11-13 14:32:01,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 456 transitions, 1065 flow. Second operand has 4 states, 4 states have (on average 164.25) internal successors, (657), 4 states have internal predecessors, (657), 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) [2024-11-13 14:32:01,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:32:01,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 452 [2024-11-13 14:32:01,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:32:06,063 INFO L124 PetriNetUnfolderBase]: 12039/26699 cut-off events. [2024-11-13 14:32:06,063 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-13 14:32:06,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48201 conditions, 26699 events. 12039/26699 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 206851 event pairs, 3847 based on Foata normal form. 44/23232 useless extension candidates. Maximal degree in co-relation 48072. Up to 10392 conditions per place. [2024-11-13 14:32:06,166 INFO L140 encePairwiseOnDemand]: 437/452 looper letters, 565 selfloop transitions, 13 changer transitions 0/736 dead transitions. [2024-11-13 14:32:06,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 736 transitions, 2781 flow [2024-11-13 14:32:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:32:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:32:06,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1221 transitions. [2024-11-13 14:32:06,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6753318584070797 [2024-11-13 14:32:06,171 INFO L175 Difference]: Start difference. First operand has 409 places, 456 transitions, 1065 flow. Second operand 4 states and 1221 transitions. [2024-11-13 14:32:06,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 736 transitions, 2781 flow [2024-11-13 14:32:06,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 736 transitions, 2743 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-13 14:32:06,189 INFO L231 Difference]: Finished difference. Result has 407 places, 454 transitions, 1049 flow [2024-11-13 14:32:06,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1049, PETRI_PLACES=407, PETRI_TRANSITIONS=454} [2024-11-13 14:32:06,192 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 4 predicate places. [2024-11-13 14:32:06,192 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 454 transitions, 1049 flow [2024-11-13 14:32:06,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.25) internal successors, (657), 4 states have internal predecessors, (657), 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) [2024-11-13 14:32:06,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:32:06,193 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:32:06,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:32:06,193 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:32:06,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:06,193 INFO L85 PathProgramCache]: Analyzing trace with hash -547961107, now seen corresponding path program 1 times [2024-11-13 14:32:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:06,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708054013] [2024-11-13 14:32:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:32:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:32:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708054013] [2024-11-13 14:32:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708054013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:32:06,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029964746] [2024-11-13 14:32:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:32:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:06,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:32:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:32:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:06,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:32:06,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:32:06,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:32:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:32:07,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029964746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:32:07,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:32:07,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-11-13 14:32:07,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614593861] [2024-11-13 14:32:07,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:32:07,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:32:07,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:32:07,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:32:07,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:32:07,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 452 [2024-11-13 14:32:07,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 454 transitions, 1049 flow. Second operand has 11 states, 11 states have (on average 161.8181818181818) internal successors, (1780), 11 states have internal predecessors, (1780), 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) [2024-11-13 14:32:07,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:32:07,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 452 [2024-11-13 14:32:07,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:32:13,032 INFO L124 PetriNetUnfolderBase]: 12091/26791 cut-off events. [2024-11-13 14:32:13,032 INFO L125 PetriNetUnfolderBase]: For 628/628 co-relation queries the response was YES. [2024-11-13 14:32:13,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48326 conditions, 26791 events. 12091/26791 cut-off events. For 628/628 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 207349 event pairs, 4095 based on Foata normal form. 1/23280 useless extension candidates. Maximal degree in co-relation 48189. Up to 10318 conditions per place. [2024-11-13 14:32:13,142 INFO L140 encePairwiseOnDemand]: 432/452 looper letters, 579 selfloop transitions, 29 changer transitions 0/764 dead transitions. [2024-11-13 14:32:13,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 764 transitions, 2895 flow [2024-11-13 14:32:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:32:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:32:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2209 transitions. [2024-11-13 14:32:13,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.488716814159292 [2024-11-13 14:32:13,151 INFO L175 Difference]: Start difference. First operand has 407 places, 454 transitions, 1049 flow. Second operand 10 states and 2209 transitions. [2024-11-13 14:32:13,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 764 transitions, 2895 flow [2024-11-13 14:32:13,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 764 transitions, 2881 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:32:13,167 INFO L231 Difference]: Finished difference. Result has 415 places, 456 transitions, 1129 flow [2024-11-13 14:32:13,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=452, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1129, PETRI_PLACES=415, PETRI_TRANSITIONS=456} [2024-11-13 14:32:13,171 INFO L277 CegarLoopForPetriNet]: 403 programPoint places, 12 predicate places. [2024-11-13 14:32:13,171 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 456 transitions, 1129 flow [2024-11-13 14:32:13,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 161.8181818181818) internal successors, (1780), 11 states have internal predecessors, (1780), 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) [2024-11-13 14:32:13,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:32:13,173 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:32:13,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:32:13,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaded044-630c-42bb-b9cb-c2163d646a71/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:32:13,377 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2024-11-13 14:32:13,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:13,378 INFO L85 PathProgramCache]: Analyzing trace with hash -939058990, now seen corresponding path program 2 times [2024-11-13 14:32:13,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:13,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880749313] [2024-11-13 14:32:13,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:13,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:13,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:13,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:13,613 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:32:13,614 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2024-11-13 14:32:13,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2024-11-13 14:32:13,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2024-11-13 14:32:13,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2024-11-13 14:32:13,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2024-11-13 14:32:13,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2024-11-13 14:32:13,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2024-11-13 14:32:13,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2024-11-13 14:32:13,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2024-11-13 14:32:13,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2024-11-13 14:32:13,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2024-11-13 14:32:13,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2024-11-13 14:32:13,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2024-11-13 14:32:13,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2024-11-13 14:32:13,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2024-11-13 14:32:13,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2024-11-13 14:32:13,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2024-11-13 14:32:13,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2024-11-13 14:32:13,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2024-11-13 14:32:13,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2024-11-13 14:32:13,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2024-11-13 14:32:13,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2024-11-13 14:32:13,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2024-11-13 14:32:13,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2024-11-13 14:32:13,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2024-11-13 14:32:13,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2024-11-13 14:32:13,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2024-11-13 14:32:13,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:32:13,631 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-11-13 14:32:13,635 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 14:32:13,636 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 14:32:13,790 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 14:32:13,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 492 transitions, 1000 flow [2024-11-13 14:32:13,977 INFO L124 PetriNetUnfolderBase]: 150/1289 cut-off events. [2024-11-13 14:32:13,977 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 14:32:13,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 1289 events. 150/1289 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8267 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 840. Up to 9 conditions per place. [2024-11-13 14:32:13,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 492 transitions, 1000 flow [2024-11-13 14:32:13,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 492 transitions, 1000 flow [2024-11-13 14:32:14,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:32:14,001 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;@4682eac9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:32:14,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2024-11-13 14:32:14,004 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:32:14,004 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 14:32:14,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:32:14,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:32:14,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 14:32:14,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2024-11-13 14:32:14,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:14,005 INFO L85 PathProgramCache]: Analyzing trace with hash 174954672, now seen corresponding path program 1 times [2024-11-13 14:32:14,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:14,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397021008] [2024-11-13 14:32:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:14,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:32:14,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397021008] [2024-11-13 14:32:14,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397021008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:32:14,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:32:14,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:32:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729726103] [2024-11-13 14:32:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:32:14,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:32:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:32:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:32:14,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:32:14,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 492 [2024-11-13 14:32:14,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 492 transitions, 1000 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2024-11-13 14:32:14,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:32:14,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 492 [2024-11-13 14:32:14,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand