./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 00:32:47,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:32:47,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:32:47,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:32:47,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:32:47,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:32:47,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:32:47,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:32:47,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:32:47,797 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:32:47,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:32:47,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:32:47,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:32:47,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:32:47,800 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:32:47,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:32:47,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:32:47,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:32:47,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:32:47,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:32:47,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:32:47,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:32:47,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:32:47,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:32:47,804 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:32:47,805 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:32:47,805 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:32:47,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:32:47,806 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:32:47,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:32:47,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:32:47,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:32:47,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:32:47,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:32:47,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:32:47,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:32:47,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:32:47,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:32:47,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:32:47,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:32:47,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:32:47,811 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:32:47,812 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:32:47,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:32:47,813 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2023-11-29 00:32:48,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:32:48,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:32:48,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:32:48,059 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:32:48,059 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:32:48,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-29 00:32:50,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:32:51,075 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:32:51,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-29 00:32:51,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/data/050f27e2c/6e36015089334dc3bfe377d76602b3e9/FLAG7cb75be22 [2023-11-29 00:32:51,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/data/050f27e2c/6e36015089334dc3bfe377d76602b3e9 [2023-11-29 00:32:51,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:32:51,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:32:51,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:32:51,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:32:51,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:32:51,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:32:51" (1/1) ... [2023-11-29 00:32:51,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1180fe37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:51, skipping insertion in model container [2023-11-29 00:32:51,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:32:51" (1/1) ... [2023-11-29 00:32:51,176 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:32:51,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:32:51,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:32:51,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:32:52,122 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:32:52,123 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:32:52,130 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:32:52,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52 WrapperNode [2023-11-29 00:32:52,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:32:52,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:32:52,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:32:52,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:32:52,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,255 INFO L138 Inliner]: procedures = 490, calls = 133, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1963 [2023-11-29 00:32:52,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:32:52,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:32:52,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:32:52,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:32:52,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,331 INFO L175 MemorySlicer]: Split 287 memory accesses to 9 slices as follows [2, 4, 6, 8, 171, 2, 12, 2, 80]. 60 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 0, 0, 2, 0, 0, 4, 0, 20]. The 97 writes are split as follows [0, 2, 4, 2, 63, 1, 4, 1, 20]. [2023-11-29 00:32:52,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:32:52,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:32:52,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:32:52,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:32:52,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (1/1) ... [2023-11-29 00:32:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:32:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:32:52,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:32:52,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:32:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-11-29 00:32:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-11-29 00:32:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 00:32:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:32:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:32:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:32:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 00:32:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:32:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 00:32:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:32:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:32:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:32:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 00:32:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 00:32:52,507 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:32:52,816 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:32:52,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:32:54,875 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:32:56,318 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:32:56,319 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-29 00:32:56,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:32:56 BoogieIcfgContainer [2023-11-29 00:32:56,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:32:56,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:32:56,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:32:56,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:32:56,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:32:51" (1/3) ... [2023-11-29 00:32:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f105b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:32:56, skipping insertion in model container [2023-11-29 00:32:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:52" (2/3) ... [2023-11-29 00:32:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f105b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:32:56, skipping insertion in model container [2023-11-29 00:32:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:32:56" (3/3) ... [2023-11-29 00:32:56,327 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-11-29 00:32:56,334 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:32:56,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:32:56,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-11-29 00:32:56,342 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:32:56,469 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 00:32:56,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 351 places, 374 transitions, 755 flow [2023-11-29 00:32:56,668 INFO L124 PetriNetUnfolderBase]: 47/688 cut-off events. [2023-11-29 00:32:56,669 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 00:32:56,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 688 events. 47/688 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3735 event pairs, 0 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 351. Up to 4 conditions per place. [2023-11-29 00:32:56,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 351 places, 374 transitions, 755 flow [2023-11-29 00:32:56,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 374 transitions, 755 flow [2023-11-29 00:32:56,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:32:56,708 INFO L357 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, mHoare=true, 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;@28f74b6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:32:56,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-29 00:32:56,711 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:32:56,711 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 00:32:56,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:32:56,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:32:56,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-29 00:32:56,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:32:56,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:32:56,717 INFO L85 PathProgramCache]: Analyzing trace with hash 166318959, now seen corresponding path program 1 times [2023-11-29 00:32:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:32:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245745398] [2023-11-29 00:32:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:32:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:32:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:32:57,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:32:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245745398] [2023-11-29 00:32:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245745398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:32:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:32:57,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:32:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327112560] [2023-11-29 00:32:57,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:32:57,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:32:57,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:32:57,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:32:57,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:32:57,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 374 [2023-11-29 00:32:57,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 374 transitions, 755 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-11-29 00:32:57,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:32:57,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 374 [2023-11-29 00:32:57,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:32:59,896 INFO L124 PetriNetUnfolderBase]: 4252/10555 cut-off events. [2023-11-29 00:32:59,896 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 00:32:59,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18474 conditions, 10555 events. 4252/10555 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 82608 event pairs, 3287 based on Foata normal form. 1/8710 useless extension candidates. Maximal degree in co-relation 17927. Up to 7909 conditions per place. [2023-11-29 00:32:59,953 INFO L140 encePairwiseOnDemand]: 370/374 looper letters, 227 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2023-11-29 00:32:59,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 372 transitions, 1209 flow [2023-11-29 00:32:59,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:32:59,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:32:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2023-11-29 00:32:59,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2023-11-29 00:32:59,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2023-11-29 00:32:59,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2023-11-29 00:32:59,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:32:59,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2023-11-29 00:32:59,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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) [2023-11-29 00:32:59,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-11-29 00:32:59,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-11-29 00:32:59,988 INFO L175 Difference]: Start difference. First operand has 351 places, 374 transitions, 755 flow. Second operand 3 states and 660 transitions. [2023-11-29 00:32:59,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 372 transitions, 1209 flow [2023-11-29 00:32:59,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 372 transitions, 1209 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:33:00,001 INFO L231 Difference]: Finished difference. Result has 351 places, 372 transitions, 755 flow [2023-11-29 00:33:00,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=755, PETRI_PLACES=351, PETRI_TRANSITIONS=372} [2023-11-29 00:33:00,007 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 0 predicate places. [2023-11-29 00:33:00,007 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 372 transitions, 755 flow [2023-11-29 00:33:00,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-11-29 00:33:00,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:00,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:00,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:33:00,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:00,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:00,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1293477606, now seen corresponding path program 1 times [2023-11-29 00:33:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:00,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516259181] [2023-11-29 00:33:00,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:00,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:00,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:00,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:00,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516259181] [2023-11-29 00:33:00,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516259181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:00,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:00,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:33:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262877062] [2023-11-29 00:33:00,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:00,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:00,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:00,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:00,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:00,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 374 [2023-11-29 00:33:00,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 372 transitions, 755 flow. Second operand has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2023-11-29 00:33:00,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:00,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 374 [2023-11-29 00:33:00,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:04,002 INFO L124 PetriNetUnfolderBase]: 8267/19721 cut-off events. [2023-11-29 00:33:04,002 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 00:33:04,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34859 conditions, 19721 events. 8267/19721 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 156203 event pairs, 3192 based on Foata normal form. 99/16595 useless extension candidates. Maximal degree in co-relation 34840. Up to 7683 conditions per place. [2023-11-29 00:33:04,080 INFO L140 encePairwiseOnDemand]: 352/374 looper letters, 433 selfloop transitions, 13 changer transitions 2/583 dead transitions. [2023-11-29 00:33:04,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 583 transitions, 2073 flow [2023-11-29 00:33:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:33:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 00:33:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1010 transitions. [2023-11-29 00:33:04,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6751336898395722 [2023-11-29 00:33:04,085 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1010 transitions. [2023-11-29 00:33:04,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1010 transitions. [2023-11-29 00:33:04,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:04,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1010 transitions. [2023-11-29 00:33:04,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 252.5) internal successors, (1010), 4 states have internal predecessors, (1010), 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) [2023-11-29 00:33:04,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:04,093 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:04,093 INFO L175 Difference]: Start difference. First operand has 351 places, 372 transitions, 755 flow. Second operand 4 states and 1010 transitions. [2023-11-29 00:33:04,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 583 transitions, 2073 flow [2023-11-29 00:33:04,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 583 transitions, 2069 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:33:04,105 INFO L231 Difference]: Finished difference. Result has 354 places, 376 transitions, 825 flow [2023-11-29 00:33:04,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=825, PETRI_PLACES=354, PETRI_TRANSITIONS=376} [2023-11-29 00:33:04,106 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 3 predicate places. [2023-11-29 00:33:04,106 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 376 transitions, 825 flow [2023-11-29 00:33:04,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2023-11-29 00:33:04,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:04,107 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:04,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:33:04,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:04,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash 460408561, now seen corresponding path program 1 times [2023-11-29 00:33:04,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:04,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727051097] [2023-11-29 00:33:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:04,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:04,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727051097] [2023-11-29 00:33:04,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727051097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:04,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628392685] [2023-11-29 00:33:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:04,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:04,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:04,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:33:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:04,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:33:04,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:04,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:04,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628392685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:04,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:33:04,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 00:33:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26502284] [2023-11-29 00:33:04,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:04,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:33:04,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 374 [2023-11-29 00:33:04,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 376 transitions, 825 flow. Second operand has 5 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 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) [2023-11-29 00:33:04,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:04,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 374 [2023-11-29 00:33:04,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:08,713 INFO L124 PetriNetUnfolderBase]: 8333/19810 cut-off events. [2023-11-29 00:33:08,713 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-11-29 00:33:08,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35429 conditions, 19810 events. 8333/19810 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 156579 event pairs, 5738 based on Foata normal form. 1/16659 useless extension candidates. Maximal degree in co-relation 35393. Up to 13356 conditions per place. [2023-11-29 00:33:08,775 INFO L140 encePairwiseOnDemand]: 360/374 looper letters, 292 selfloop transitions, 16 changer transitions 1/443 dead transitions. [2023-11-29 00:33:08,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 443 transitions, 1575 flow [2023-11-29 00:33:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:33:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 00:33:08,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 851 transitions. [2023-11-29 00:33:08,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5688502673796791 [2023-11-29 00:33:08,779 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 851 transitions. [2023-11-29 00:33:08,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 851 transitions. [2023-11-29 00:33:08,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:08,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 851 transitions. [2023-11-29 00:33:08,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 212.75) internal successors, (851), 4 states have internal predecessors, (851), 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) [2023-11-29 00:33:08,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:08,789 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:08,789 INFO L175 Difference]: Start difference. First operand has 354 places, 376 transitions, 825 flow. Second operand 4 states and 851 transitions. [2023-11-29 00:33:08,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 443 transitions, 1575 flow [2023-11-29 00:33:08,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 443 transitions, 1575 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:33:08,802 INFO L231 Difference]: Finished difference. Result has 356 places, 376 transitions, 869 flow [2023-11-29 00:33:08,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=869, PETRI_PLACES=356, PETRI_TRANSITIONS=376} [2023-11-29 00:33:08,803 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 5 predicate places. [2023-11-29 00:33:08,804 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 376 transitions, 869 flow [2023-11-29 00:33:08,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 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) [2023-11-29 00:33:08,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:08,805 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:08,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:09,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:09,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:09,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1387768719, now seen corresponding path program 1 times [2023-11-29 00:33:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:09,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167388031] [2023-11-29 00:33:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:33:09,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:09,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167388031] [2023-11-29 00:33:09,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167388031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:09,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:09,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:33:09,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342400972] [2023-11-29 00:33:09,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:09,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:33:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:33:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:33:09,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 374 [2023-11-29 00:33:09,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 376 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:33:09,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:09,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 374 [2023-11-29 00:33:09,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:12,526 INFO L124 PetriNetUnfolderBase]: 8135/19596 cut-off events. [2023-11-29 00:33:12,526 INFO L125 PetriNetUnfolderBase]: For 632/632 co-relation queries the response was YES. [2023-11-29 00:33:12,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35090 conditions, 19596 events. 8135/19596 cut-off events. For 632/632 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 156158 event pairs, 6365 based on Foata normal form. 1/16469 useless extension candidates. Maximal degree in co-relation 35052. Up to 14873 conditions per place. [2023-11-29 00:33:12,595 INFO L140 encePairwiseOnDemand]: 371/374 looper letters, 229 selfloop transitions, 4 changer transitions 0/375 dead transitions. [2023-11-29 00:33:12,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 375 transitions, 1331 flow [2023-11-29 00:33:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:33:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:33:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2023-11-29 00:33:12,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864527629233511 [2023-11-29 00:33:12,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2023-11-29 00:33:12,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2023-11-29 00:33:12,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:12,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2023-11-29 00:33:12,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2023-11-29 00:33:12,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-11-29 00:33:12,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-11-29 00:33:12,606 INFO L175 Difference]: Start difference. First operand has 356 places, 376 transitions, 869 flow. Second operand 3 states and 658 transitions. [2023-11-29 00:33:12,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 375 transitions, 1331 flow [2023-11-29 00:33:12,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 375 transitions, 1311 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:33:12,617 INFO L231 Difference]: Finished difference. Result has 355 places, 375 transitions, 853 flow [2023-11-29 00:33:12,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=853, PETRI_PLACES=355, PETRI_TRANSITIONS=375} [2023-11-29 00:33:12,619 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 4 predicate places. [2023-11-29 00:33:12,619 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 375 transitions, 853 flow [2023-11-29 00:33:12,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:33:12,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:12,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:12,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:33:12,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:12,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2082257109, now seen corresponding path program 1 times [2023-11-29 00:33:12,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:12,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723974718] [2023-11-29 00:33:12,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:12,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:12,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723974718] [2023-11-29 00:33:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723974718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374147393] [2023-11-29 00:33:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:12,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:12,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:12,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:33:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:13,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:33:13,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:13,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:13,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374147393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:13,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:33:13,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 00:33:13,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022517292] [2023-11-29 00:33:13,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:13,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:33:13,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:13,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:33:13,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:33:13,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 374 [2023-11-29 00:33:13,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 375 transitions, 853 flow. Second operand has 10 states, 10 states have (on average 137.9) internal successors, (1379), 10 states have internal predecessors, (1379), 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) [2023-11-29 00:33:13,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:13,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 374 [2023-11-29 00:33:13,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:18,002 INFO L124 PetriNetUnfolderBase]: 8245/19673 cut-off events. [2023-11-29 00:33:18,003 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2023-11-29 00:33:18,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35246 conditions, 19673 events. 8245/19673 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 155466 event pairs, 3211 based on Foata normal form. 62/16596 useless extension candidates. Maximal degree in co-relation 35194. Up to 7488 conditions per place. [2023-11-29 00:33:18,062 INFO L140 encePairwiseOnDemand]: 350/374 looper letters, 463 selfloop transitions, 27 changer transitions 1/626 dead transitions. [2023-11-29 00:33:18,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 626 transitions, 2343 flow [2023-11-29 00:33:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:33:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 00:33:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1584 transitions. [2023-11-29 00:33:18,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2023-11-29 00:33:18,068 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1584 transitions. [2023-11-29 00:33:18,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1584 transitions. [2023-11-29 00:33:18,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:18,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1584 transitions. [2023-11-29 00:33:18,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 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) [2023-11-29 00:33:18,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 374.0) internal successors, (3366), 9 states have internal predecessors, (3366), 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) [2023-11-29 00:33:18,080 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 374.0) internal successors, (3366), 9 states have internal predecessors, (3366), 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) [2023-11-29 00:33:18,080 INFO L175 Difference]: Start difference. First operand has 355 places, 375 transitions, 853 flow. Second operand 8 states and 1584 transitions. [2023-11-29 00:33:18,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 626 transitions, 2343 flow [2023-11-29 00:33:18,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 626 transitions, 2329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:33:18,091 INFO L231 Difference]: Finished difference. Result has 358 places, 379 transitions, 939 flow [2023-11-29 00:33:18,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=939, PETRI_PLACES=358, PETRI_TRANSITIONS=379} [2023-11-29 00:33:18,093 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 7 predicate places. [2023-11-29 00:33:18,093 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 379 transitions, 939 flow [2023-11-29 00:33:18,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.9) internal successors, (1379), 10 states have internal predecessors, (1379), 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) [2023-11-29 00:33:18,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:18,094 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:18,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:33:18,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:18,294 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:18,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1744432075, now seen corresponding path program 2 times [2023-11-29 00:33:18,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:18,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690424452] [2023-11-29 00:33:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:18,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 00:33:18,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:18,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690424452] [2023-11-29 00:33:18,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690424452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:18,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:18,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:33:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188405182] [2023-11-29 00:33:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:18,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:18,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 374 [2023-11-29 00:33:18,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 379 transitions, 939 flow. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2023-11-29 00:33:18,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:18,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 374 [2023-11-29 00:33:18,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:22,029 INFO L124 PetriNetUnfolderBase]: 8201/19596 cut-off events. [2023-11-29 00:33:22,029 INFO L125 PetriNetUnfolderBase]: For 1066/1066 co-relation queries the response was YES. [2023-11-29 00:33:22,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35537 conditions, 19596 events. 8201/19596 cut-off events. For 1066/1066 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 155058 event pairs, 2995 based on Foata normal form. 40/16508 useless extension candidates. Maximal degree in co-relation 35483. Up to 7556 conditions per place. [2023-11-29 00:33:22,101 INFO L140 encePairwiseOnDemand]: 359/374 looper letters, 453 selfloop transitions, 13 changer transitions 0/601 dead transitions. [2023-11-29 00:33:22,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 601 transitions, 2315 flow [2023-11-29 00:33:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:33:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 00:33:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1013 transitions. [2023-11-29 00:33:22,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6771390374331551 [2023-11-29 00:33:22,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1013 transitions. [2023-11-29 00:33:22,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1013 transitions. [2023-11-29 00:33:22,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:22,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1013 transitions. [2023-11-29 00:33:22,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 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) [2023-11-29 00:33:22,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:22,116 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 374.0) internal successors, (1870), 5 states have internal predecessors, (1870), 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) [2023-11-29 00:33:22,116 INFO L175 Difference]: Start difference. First operand has 358 places, 379 transitions, 939 flow. Second operand 4 states and 1013 transitions. [2023-11-29 00:33:22,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 601 transitions, 2315 flow [2023-11-29 00:33:22,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 601 transitions, 2253 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-11-29 00:33:22,135 INFO L231 Difference]: Finished difference. Result has 354 places, 377 transitions, 899 flow [2023-11-29 00:33:22,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=899, PETRI_PLACES=354, PETRI_TRANSITIONS=377} [2023-11-29 00:33:22,137 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 3 predicate places. [2023-11-29 00:33:22,137 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 377 transitions, 899 flow [2023-11-29 00:33:22,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2023-11-29 00:33:22,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:22,138 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:22,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:33:22,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:22,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:22,139 INFO L85 PathProgramCache]: Analyzing trace with hash -723030532, now seen corresponding path program 1 times [2023-11-29 00:33:22,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:22,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037885815] [2023-11-29 00:33:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:22,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:33:22,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:22,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037885815] [2023-11-29 00:33:22,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037885815] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:22,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414775868] [2023-11-29 00:33:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:22,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:22,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:22,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:33:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:22,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:33:22,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:33:22,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:33:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414775868] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:22,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:33:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-11-29 00:33:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527736125] [2023-11-29 00:33:22,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:22,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:33:22,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:22,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:33:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:33:22,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 374 [2023-11-29 00:33:22,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 377 transitions, 899 flow. Second operand has 11 states, 11 states have (on average 137.8181818181818) internal successors, (1516), 11 states have internal predecessors, (1516), 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) [2023-11-29 00:33:22,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:22,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 374 [2023-11-29 00:33:22,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:33:26,806 INFO L124 PetriNetUnfolderBase]: 8245/19671 cut-off events. [2023-11-29 00:33:26,806 INFO L125 PetriNetUnfolderBase]: For 874/874 co-relation queries the response was YES. [2023-11-29 00:33:26,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35569 conditions, 19671 events. 8245/19671 cut-off events. For 874/874 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 155428 event pairs, 3211 based on Foata normal form. 1/16535 useless extension candidates. Maximal degree in co-relation 35440. Up to 7488 conditions per place. [2023-11-29 00:33:26,880 INFO L140 encePairwiseOnDemand]: 354/374 looper letters, 463 selfloop transitions, 29 changer transitions 0/625 dead transitions. [2023-11-29 00:33:26,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 625 transitions, 2385 flow [2023-11-29 00:33:26,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:33:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 00:33:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1853 transitions. [2023-11-29 00:33:26,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4954545454545455 [2023-11-29 00:33:26,886 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1853 transitions. [2023-11-29 00:33:26,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1853 transitions. [2023-11-29 00:33:26,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:33:26,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1853 transitions. [2023-11-29 00:33:26,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 185.3) internal successors, (1853), 10 states have internal predecessors, (1853), 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) [2023-11-29 00:33:26,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 374.0) internal successors, (4114), 11 states have internal predecessors, (4114), 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) [2023-11-29 00:33:26,898 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 374.0) internal successors, (4114), 11 states have internal predecessors, (4114), 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) [2023-11-29 00:33:26,898 INFO L175 Difference]: Start difference. First operand has 354 places, 377 transitions, 899 flow. Second operand 10 states and 1853 transitions. [2023-11-29 00:33:26,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 625 transitions, 2385 flow [2023-11-29 00:33:26,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 625 transitions, 2371 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:33:26,908 INFO L231 Difference]: Finished difference. Result has 362 places, 379 transitions, 975 flow [2023-11-29 00:33:26,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=975, PETRI_PLACES=362, PETRI_TRANSITIONS=379} [2023-11-29 00:33:26,910 INFO L281 CegarLoopForPetriNet]: 351 programPoint places, 11 predicate places. [2023-11-29 00:33:26,910 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 379 transitions, 975 flow [2023-11-29 00:33:26,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 137.8181818181818) internal successors, (1516), 11 states have internal predecessors, (1516), 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) [2023-11-29 00:33:26,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:26,911 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:26,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:33:27,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:27,111 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-29 00:33:27,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:27,112 INFO L85 PathProgramCache]: Analyzing trace with hash 480180037, now seen corresponding path program 2 times [2023-11-29 00:33:27,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:27,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358347387] [2023-11-29 00:33:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:33:27,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:33:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:33:27,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:33:27,226 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:33:27,227 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2023-11-29 00:33:27,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2023-11-29 00:33:27,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2023-11-29 00:33:27,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2023-11-29 00:33:27,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2023-11-29 00:33:27,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2023-11-29 00:33:27,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2023-11-29 00:33:27,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2023-11-29 00:33:27,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2023-11-29 00:33:27,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2023-11-29 00:33:27,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2023-11-29 00:33:27,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2023-11-29 00:33:27,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2023-11-29 00:33:27,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2023-11-29 00:33:27,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2023-11-29 00:33:27,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2023-11-29 00:33:27,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2023-11-29 00:33:27,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2023-11-29 00:33:27,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2023-11-29 00:33:27,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2023-11-29 00:33:27,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:33:27,242 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-11-29 00:33:27,244 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 00:33:27,245 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 00:33:27,335 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 00:33:27,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 383 places, 408 transitions, 832 flow [2023-11-29 00:33:27,456 INFO L124 PetriNetUnfolderBase]: 74/1061 cut-off events. [2023-11-29 00:33:27,456 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:33:27,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 1061 events. 74/1061 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6901 event pairs, 0 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 690. Up to 8 conditions per place. [2023-11-29 00:33:27,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 383 places, 408 transitions, 832 flow [2023-11-29 00:33:27,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 383 places, 408 transitions, 832 flow [2023-11-29 00:33:27,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:33:27,470 INFO L357 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, mHoare=true, 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;@28f74b6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:33:27,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2023-11-29 00:33:27,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:33:27,473 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 00:33:27,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:33:27,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:33:27,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-29 00:33:27,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-29 00:33:27,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash 178878831, now seen corresponding path program 1 times [2023-11-29 00:33:27,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:27,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689368787] [2023-11-29 00:33:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:27,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:27,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:27,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689368787] [2023-11-29 00:33:27,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689368787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:27,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:27,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:33:27,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636292915] [2023-11-29 00:33:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:27,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:33:27,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:27,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:33:27,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:33:27,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 408 [2023-11-29 00:33:27,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 408 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2023-11-29 00:33:27,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:33:27,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 408 [2023-11-29 00:33:27,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:34:04,560 INFO L124 PetriNetUnfolderBase]: 165631/292130 cut-off events. [2023-11-29 00:34:04,560 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-11-29 00:34:04,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531310 conditions, 292130 events. 165631/292130 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 3055. Compared 2839506 event pairs, 135318 based on Foata normal form. 1/244100 useless extension candidates. Maximal degree in co-relation 387956. Up to 239068 conditions per place. [2023-11-29 00:34:05,702 INFO L140 encePairwiseOnDemand]: 404/408 looper letters, 251 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2023-11-29 00:34:05,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 406 transitions, 1334 flow [2023-11-29 00:34:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:34:05,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:34:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2023-11-29 00:34:05,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-11-29 00:34:05,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2023-11-29 00:34:05,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2023-11-29 00:34:05,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:34:05,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2023-11-29 00:34:05,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2023-11-29 00:34:05,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2023-11-29 00:34:05,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2023-11-29 00:34:05,710 INFO L175 Difference]: Start difference. First operand has 383 places, 408 transitions, 832 flow. Second operand 3 states and 714 transitions. [2023-11-29 00:34:05,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 406 transitions, 1334 flow [2023-11-29 00:34:05,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 406 transitions, 1334 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:34:05,717 INFO L231 Difference]: Finished difference. Result has 383 places, 406 transitions, 832 flow [2023-11-29 00:34:05,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=383, PETRI_TRANSITIONS=406} [2023-11-29 00:34:05,718 INFO L281 CegarLoopForPetriNet]: 383 programPoint places, 0 predicate places. [2023-11-29 00:34:05,718 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 406 transitions, 832 flow [2023-11-29 00:34:05,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2023-11-29 00:34:05,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:34:05,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:05,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:34:05,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-29 00:34:05,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:05,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1389080910, now seen corresponding path program 1 times [2023-11-29 00:34:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:05,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564308811] [2023-11-29 00:34:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:05,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:34:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564308811] [2023-11-29 00:34:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564308811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:34:05,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:34:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:34:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004579181] [2023-11-29 00:34:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:34:05,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:34:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:34:05,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:34:05,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 408 [2023-11-29 00:34:05,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 406 transitions, 832 flow. Second operand has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-29 00:34:05,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:34:05,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 408 [2023-11-29 00:34:05,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:35:23,896 INFO L124 PetriNetUnfolderBase]: 324485/564957 cut-off events. [2023-11-29 00:35:23,896 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2023-11-29 00:35:24,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033578 conditions, 564957 events. 324485/564957 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 3837. Compared 5566768 event pairs, 132943 based on Foata normal form. 2080/478296 useless extension candidates. Maximal degree in co-relation 1033558. Up to 239767 conditions per place. [2023-11-29 00:35:26,099 INFO L140 encePairwiseOnDemand]: 386/408 looper letters, 487 selfloop transitions, 13 changer transitions 0/645 dead transitions. [2023-11-29 00:35:26,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 645 transitions, 2316 flow [2023-11-29 00:35:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:35:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 00:35:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1102 transitions. [2023-11-29 00:35:26,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6752450980392157 [2023-11-29 00:35:26,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1102 transitions. [2023-11-29 00:35:26,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1102 transitions. [2023-11-29 00:35:26,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:35:26,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1102 transitions. [2023-11-29 00:35:26,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 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) [2023-11-29 00:35:26,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 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) [2023-11-29 00:35:26,113 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 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) [2023-11-29 00:35:26,114 INFO L175 Difference]: Start difference. First operand has 383 places, 406 transitions, 832 flow. Second operand 4 states and 1102 transitions. [2023-11-29 00:35:26,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 645 transitions, 2316 flow [2023-11-29 00:35:26,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 645 transitions, 2312 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:35:26,127 INFO L231 Difference]: Finished difference. Result has 386 places, 413 transitions, 914 flow [2023-11-29 00:35:26,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=914, PETRI_PLACES=386, PETRI_TRANSITIONS=413} [2023-11-29 00:35:26,129 INFO L281 CegarLoopForPetriNet]: 383 programPoint places, 3 predicate places. [2023-11-29 00:35:26,129 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 413 transitions, 914 flow [2023-11-29 00:35:26,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-29 00:35:26,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:35:26,130 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:26,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:35:26,130 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-11-29 00:35:26,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:26,131 INFO L85 PathProgramCache]: Analyzing trace with hash -93898511, now seen corresponding path program 1 times [2023-11-29 00:35:26,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:26,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132610428] [2023-11-29 00:35:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:26,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132610428] [2023-11-29 00:35:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132610428] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:35:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673970129] [2023-11-29 00:35:26,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:26,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:26,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:26,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:35:26,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a493f34-2908-4ce0-a2a2-104eaa94e73c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:35:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:26,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:35:26,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:26,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:26,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673970129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:26,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:35:26,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 00:35:26,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272343145] [2023-11-29 00:35:26,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:26,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:35:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:35:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:35:26,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 408 [2023-11-29 00:35:26,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 413 transitions, 914 flow. Second operand has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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) [2023-11-29 00:35:26,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:35:26,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 408 [2023-11-29 00:35:26,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand