./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 e7bb482b 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_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0.2.3-dev-e7bb482 [2023-11-06 22:02:48,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:48,740 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:02:48,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:48,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:48,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:48,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:48,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:48,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:48,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:48,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:48,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:48,776 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:48,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:48,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:48,778 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:48,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:48,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:48,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:48,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:48,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:48,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:48,782 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:02:48,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:02:48,783 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:48,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:48,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:48,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:48,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:48,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:48,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:48,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:48,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:48,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:48,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:48,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:48,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:48,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:48,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:48,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:48,788 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:48,788 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_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2023-11-06 22:02:49,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:49,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:49,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:49,102 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:49,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:49,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-06 22:02:52,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:52,650 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:52,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-06 22:02:52,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/data/81a6615a4/b993728750cc4ffe91d3dae2967a18fe/FLAGa0c2f18c4 [2023-11-06 22:02:52,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/data/81a6615a4/b993728750cc4ffe91d3dae2967a18fe [2023-11-06 22:02:52,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:52,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:52,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:52,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:52,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:52,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:52" (1/1) ... [2023-11-06 22:02:52,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7ad222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:52, skipping insertion in model container [2023-11-06 22:02:52,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:52" (1/1) ... [2023-11-06 22:02:52,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:53,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:53,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:54,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:54,211 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:54,211 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:54,217 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:54,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54 WrapperNode [2023-11-06 22:02:54,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:54,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:54,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:54,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:54,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,360 INFO L138 Inliner]: procedures = 489, calls = 130, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1948 [2023-11-06 22:02:54,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:54,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:54,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:54,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:54,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:54,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:54,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:54,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:54,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (1/1) ... [2023-11-06 22:02:54,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:54,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:54,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-11-06 22:02:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-11-06 22:02:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:02:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:02:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:02:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:02:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:02:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:02:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:02:54,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:02:54,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:54,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:54,658 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:02:55,063 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:55,065 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:57,409 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:57,891 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:57,891 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-06 22:02:57,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:57 BoogieIcfgContainer [2023-11-06 22:02:57,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:57,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:57,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:57,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:57,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:52" (1/3) ... [2023-11-06 22:02:57,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6319a523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:57, skipping insertion in model container [2023-11-06 22:02:57,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:54" (2/3) ... [2023-11-06 22:02:57,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6319a523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:57, skipping insertion in model container [2023-11-06 22:02:57,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:57" (3/3) ... [2023-11-06 22:02:57,910 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-11-06 22:02:57,920 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:02:57,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:57,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-11-06 22:02:57,932 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:02:58,228 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:02:58,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:02:59,974 INFO L124 PetriNetUnfolderBase]: 141/3742 cut-off events. [2023-11-06 22:02:59,974 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:03:00,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3747 conditions, 3742 events. 141/3742 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 18634 event pairs, 0 based on Foata normal form. 0/3432 useless extension candidates. Maximal degree in co-relation 1913. Up to 6 conditions per place. [2023-11-06 22:03:00,041 INFO L82 GeneralOperation]: Start removeDead. Operand has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:03:00,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:03:00,085 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:03:00,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:03:00,102 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:03:00,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1939 places, 2011 transitions, 4029 flow [2023-11-06 22:03:01,452 INFO L124 PetriNetUnfolderBase]: 141/3742 cut-off events. [2023-11-06 22:03:01,452 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:03:01,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3747 conditions, 3742 events. 141/3742 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 18634 event pairs, 0 based on Foata normal form. 0/3432 useless extension candidates. Maximal degree in co-relation 1913. Up to 6 conditions per place. [2023-11-06 22:03:01,698 INFO L119 LiptonReduction]: Number of co-enabled transitions 602386 [2023-11-06 22:05:08,346 WARN L293 SmtUtils]: Spent 8.72s on a formula simplification. DAG size of input: 207 DAG size of output: 195 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:05:23,430 WARN L293 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 207 DAG size of output: 195 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:05:28,640 INFO L134 LiptonReduction]: Checked pairs total: 713964 [2023-11-06 22:05:28,640 INFO L136 LiptonReduction]: Total number of compositions: 2031 [2023-11-06 22:05:28,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:05:28,665 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=LoopsAndPotentialCycles, 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;@54e201b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:05:28,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-06 22:05:28,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:05:28,667 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:05:28,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:05:28,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:28,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:05:28,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-06 22:05:28,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:28,676 INFO L85 PathProgramCache]: Analyzing trace with hash 7493, now seen corresponding path program 1 times [2023-11-06 22:05:28,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:28,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815637338] [2023-11-06 22:05:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:29,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:29,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815637338] [2023-11-06 22:05:29,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815637338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:29,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:29,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:05:29,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780261103] [2023-11-06 22:05:29,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:05:29,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:29,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:05:29,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:05:29,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1933 out of 4042 [2023-11-06 22:05:29,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 382 transitions, 771 flow. Second operand has 2 states, 2 states have (on average 1933.5) internal successors, (3867), 2 states have internal predecessors, (3867), 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) [2023-11-06 22:05:29,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:29,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1933 of 4042 [2023-11-06 22:05:29,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:33,934 INFO L124 PetriNetUnfolderBase]: 10330/18955 cut-off events. [2023-11-06 22:05:33,934 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:05:33,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37753 conditions, 18955 events. 10330/18955 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 125673 event pairs, 7868 based on Foata normal form. 30/13381 useless extension candidates. Maximal degree in co-relation 37099. Up to 18793 conditions per place. [2023-11-06 22:05:34,057 INFO L140 encePairwiseOnDemand]: 4024/4042 looper letters, 358 selfloop transitions, 0 changer transitions 0/364 dead transitions. [2023-11-06 22:05:34,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 364 transitions, 1451 flow [2023-11-06 22:05:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:05:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:05:34,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4242 transitions. [2023-11-06 22:05:34,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.524740227610094 [2023-11-06 22:05:34,098 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 4242 transitions. [2023-11-06 22:05:34,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 4242 transitions. [2023-11-06 22:05:34,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:34,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 4242 transitions. [2023-11-06 22:05:34,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 2121.0) internal successors, (4242), 2 states have internal predecessors, (4242), 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) [2023-11-06 22:05:34,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 4042.0) internal successors, (12126), 3 states have internal predecessors, (12126), 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) [2023-11-06 22:05:34,180 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 4042.0) internal successors, (12126), 3 states have internal predecessors, (12126), 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) [2023-11-06 22:05:34,182 INFO L175 Difference]: Start difference. First operand has 341 places, 382 transitions, 771 flow. Second operand 2 states and 4242 transitions. [2023-11-06 22:05:34,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 364 transitions, 1451 flow [2023-11-06 22:05:34,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 364 transitions, 1451 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:05:34,205 INFO L231 Difference]: Finished difference. Result has 326 places, 364 transitions, 735 flow [2023-11-06 22:05:34,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=4042, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=735, PETRI_PLACES=326, PETRI_TRANSITIONS=364} [2023-11-06 22:05:34,214 INFO L281 CegarLoopForPetriNet]: 341 programPoint places, -15 predicate places. [2023-11-06 22:05:34,214 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 364 transitions, 735 flow [2023-11-06 22:05:34,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1933.5) internal successors, (3867), 2 states have internal predecessors, (3867), 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) [2023-11-06 22:05:34,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:34,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:05:34,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:05:34,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-06 22:05:34,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash 239611, now seen corresponding path program 1 times [2023-11-06 22:05:34,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:34,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079060392] [2023-11-06 22:05:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:34,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:34,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:34,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079060392] [2023-11-06 22:05:34,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079060392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:34,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:34,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:05:34,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950918377] [2023-11-06 22:05:34,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:34,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:05:34,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:34,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:05:34,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:05:34,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1906 out of 4042 [2023-11-06 22:05:34,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 364 transitions, 735 flow. Second operand has 3 states, 3 states have (on average 1906.6666666666667) internal successors, (5720), 3 states have internal predecessors, (5720), 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) [2023-11-06 22:05:34,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:34,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1906 of 4042 [2023-11-06 22:05:34,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:42,646 INFO L124 PetriNetUnfolderBase]: 19906/35981 cut-off events. [2023-11-06 22:05:42,646 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:05:42,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71740 conditions, 35981 events. 19906/35981 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 244077 event pairs, 7588 based on Foata normal form. 0/25609 useless extension candidates. Maximal degree in co-relation 71736. Up to 17984 conditions per place. [2023-11-06 22:05:42,865 INFO L140 encePairwiseOnDemand]: 4020/4042 looper letters, 678 selfloop transitions, 12 changer transitions 2/698 dead transitions. [2023-11-06 22:05:42,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 698 transitions, 2787 flow [2023-11-06 22:05:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:05:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:05:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6425 transitions. [2023-11-06 22:05:42,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5298532079828467 [2023-11-06 22:05:42,900 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 6425 transitions. [2023-11-06 22:05:42,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 6425 transitions. [2023-11-06 22:05:42,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:42,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 6425 transitions. [2023-11-06 22:05:42,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 2141.6666666666665) internal successors, (6425), 3 states have internal predecessors, (6425), 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) [2023-11-06 22:05:42,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 4042.0) internal successors, (16168), 4 states have internal predecessors, (16168), 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) [2023-11-06 22:05:43,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 4042.0) internal successors, (16168), 4 states have internal predecessors, (16168), 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) [2023-11-06 22:05:43,021 INFO L175 Difference]: Start difference. First operand has 326 places, 364 transitions, 735 flow. Second operand 3 states and 6425 transitions. [2023-11-06 22:05:43,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 698 transitions, 2787 flow [2023-11-06 22:05:43,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 698 transitions, 2787 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:05:43,045 INFO L231 Difference]: Finished difference. Result has 325 places, 363 transitions, 787 flow [2023-11-06 22:05:43,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=4042, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=325, PETRI_TRANSITIONS=363} [2023-11-06 22:05:43,052 INFO L281 CegarLoopForPetriNet]: 341 programPoint places, -16 predicate places. [2023-11-06 22:05:43,053 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 363 transitions, 787 flow [2023-11-06 22:05:43,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1906.6666666666667) internal successors, (5720), 3 states have internal predecessors, (5720), 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) [2023-11-06 22:05:43,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:43,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:05:43,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:05:43,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-06 22:05:43,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash 7435238, now seen corresponding path program 1 times [2023-11-06 22:05:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547091069] [2023-11-06 22:05:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:43,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:43,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547091069] [2023-11-06 22:05:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547091069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:05:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438903322] [2023-11-06 22:05:43,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:43,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:05:43,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:05:43,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:05:43,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:05:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:05:43,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:05:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:43,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:05:43,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438903322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:43,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:05:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-06 22:05:43,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33119301] [2023-11-06 22:05:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:43,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:43,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1906 out of 4042 [2023-11-06 22:05:43,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 363 transitions, 787 flow. Second operand has 4 states, 4 states have (on average 1906.75) internal successors, (7627), 4 states have internal predecessors, (7627), 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) [2023-11-06 22:05:43,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:43,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1906 of 4042 [2023-11-06 22:05:43,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:52,369 INFO L124 PetriNetUnfolderBase]: 19906/35953 cut-off events. [2023-11-06 22:05:52,369 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-11-06 22:05:52,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72128 conditions, 35953 events. 19906/35953 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 243601 event pairs, 7319 based on Foata normal form. 0/25848 useless extension candidates. Maximal degree in co-relation 72122. Up to 17789 conditions per place. [2023-11-06 22:05:52,538 INFO L140 encePairwiseOnDemand]: 4027/4042 looper letters, 706 selfloop transitions, 10 changer transitions 6/728 dead transitions. [2023-11-06 22:05:52,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 728 transitions, 2957 flow [2023-11-06 22:05:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:05:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8348 transitions. [2023-11-06 22:05:52,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.516328550222662 [2023-11-06 22:05:52,576 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 8348 transitions. [2023-11-06 22:05:52,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 8348 transitions. [2023-11-06 22:05:52,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:52,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 8348 transitions. [2023-11-06 22:05:52,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 2087.0) internal successors, (8348), 4 states have internal predecessors, (8348), 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) [2023-11-06 22:05:52,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 4042.0) internal successors, (20210), 5 states have internal predecessors, (20210), 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) [2023-11-06 22:05:52,657 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 4042.0) internal successors, (20210), 5 states have internal predecessors, (20210), 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) [2023-11-06 22:05:52,657 INFO L175 Difference]: Start difference. First operand has 325 places, 363 transitions, 787 flow. Second operand 4 states and 8348 transitions. [2023-11-06 22:05:52,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 728 transitions, 2957 flow [2023-11-06 22:05:52,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 728 transitions, 2945 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:05:52,683 INFO L231 Difference]: Finished difference. Result has 324 places, 356 transitions, 766 flow [2023-11-06 22:05:52,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=4042, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=766, PETRI_PLACES=324, PETRI_TRANSITIONS=356} [2023-11-06 22:05:52,686 INFO L281 CegarLoopForPetriNet]: 341 programPoint places, -17 predicate places. [2023-11-06 22:05:52,686 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 356 transitions, 766 flow [2023-11-06 22:05:52,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1906.75) internal successors, (7627), 4 states have internal predecessors, (7627), 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) [2023-11-06 22:05:52,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:52,690 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:52,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:05:52,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:05:52,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-06 22:05:52,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash 594100396, now seen corresponding path program 1 times [2023-11-06 22:05:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:52,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382976933] [2023-11-06 22:05:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:52,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:05:53,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:53,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382976933] [2023-11-06 22:05:53,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382976933] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:05:53,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879582289] [2023-11-06 22:05:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:53,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:05:53,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:05:53,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:05:53,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:05:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:53,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:05:53,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:05:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:05:53,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:05:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:05:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879582289] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:05:53,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:05:53,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:05:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371689019] [2023-11-06 22:05:53,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:05:53,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:05:53,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:05:53,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:05:53,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1900 out of 4042 [2023-11-06 22:05:53,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 356 transitions, 766 flow. Second operand has 7 states, 7 states have (on average 1901.5714285714287) internal successors, (13311), 7 states have internal predecessors, (13311), 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) [2023-11-06 22:05:53,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:53,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1900 of 4042 [2023-11-06 22:05:53,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:53,961 INFO L124 PetriNetUnfolderBase]: 72/197 cut-off events. [2023-11-06 22:05:53,961 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-11-06 22:05:53,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 197 events. 72/197 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 677 event pairs, 0 based on Foata normal form. 32/202 useless extension candidates. Maximal degree in co-relation 433. Up to 125 conditions per place. [2023-11-06 22:05:53,963 INFO L140 encePairwiseOnDemand]: 4037/4042 looper letters, 70 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-11-06 22:05:53,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 80 transitions, 342 flow [2023-11-06 22:05:53,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:05:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:05:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11481 transitions. [2023-11-06 22:05:54,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4734042553191489 [2023-11-06 22:05:54,021 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 11481 transitions. [2023-11-06 22:05:54,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11481 transitions. [2023-11-06 22:05:54,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:54,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 11481 transitions. [2023-11-06 22:05:54,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1913.5) internal successors, (11481), 6 states have internal predecessors, (11481), 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) [2023-11-06 22:05:54,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 4042.0) internal successors, (28294), 7 states have internal predecessors, (28294), 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) [2023-11-06 22:05:54,136 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 4042.0) internal successors, (28294), 7 states have internal predecessors, (28294), 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) [2023-11-06 22:05:54,136 INFO L175 Difference]: Start difference. First operand has 324 places, 356 transitions, 766 flow. Second operand 6 states and 11481 transitions. [2023-11-06 22:05:54,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 80 transitions, 342 flow [2023-11-06 22:05:54,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 80 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:05:54,151 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 131 flow [2023-11-06 22:05:54,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=4042, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=131, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2023-11-06 22:05:54,154 INFO L281 CegarLoopForPetriNet]: 341 programPoint places, -293 predicate places. [2023-11-06 22:05:54,155 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 131 flow [2023-11-06 22:05:54,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1901.5714285714287) internal successors, (13311), 7 states have internal predecessors, (13311), 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) [2023-11-06 22:05:54,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:54,161 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-11-06 22:05:54,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:05:54,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64822570-e781-4364-a411-3c5568343f1c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:05:54,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-06 22:05:54,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:54,370 INFO L85 PathProgramCache]: Analyzing trace with hash 636217079, now seen corresponding path program 2 times [2023-11-06 22:05:54,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:54,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829787858] [2023-11-06 22:05:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:54,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:05:54,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:05:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:05:54,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:05:54,556 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:05:54,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-11-06 22:05:54,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2023-11-06 22:05:54,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2023-11-06 22:05:54,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2023-11-06 22:05:54,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2023-11-06 22:05:54,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2023-11-06 22:05:54,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2023-11-06 22:05:54,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2023-11-06 22:05:54,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2023-11-06 22:05:54,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2023-11-06 22:05:54,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2023-11-06 22:05:54,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2023-11-06 22:05:54,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2023-11-06 22:05:54,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2023-11-06 22:05:54,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2023-11-06 22:05:54,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2023-11-06 22:05:54,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2023-11-06 22:05:54,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2023-11-06 22:05:54,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2023-11-06 22:05:54,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2023-11-06 22:05:54,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2023-11-06 22:05:54,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2023-11-06 22:05:54,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2023-11-06 22:05:54,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2023-11-06 22:05:54,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2023-11-06 22:05:54,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2023-11-06 22:05:54,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2023-11-06 22:05:54,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2023-11-06 22:05:54,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2023-11-06 22:05:54,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2023-11-06 22:05:54,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2023-11-06 22:05:54,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2023-11-06 22:05:54,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2023-11-06 22:05:54,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2023-11-06 22:05:54,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2023-11-06 22:05:54,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2023-11-06 22:05:54,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2023-11-06 22:05:54,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2023-11-06 22:05:54,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2023-11-06 22:05:54,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2023-11-06 22:05:54,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2023-11-06 22:05:54,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2023-11-06 22:05:54,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2023-11-06 22:05:54,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2023-11-06 22:05:54,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2023-11-06 22:05:54,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2023-11-06 22:05:54,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2023-11-06 22:05:54,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2023-11-06 22:05:54,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2023-11-06 22:05:54,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2023-11-06 22:05:54,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2023-11-06 22:05:54,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2023-11-06 22:05:54,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2023-11-06 22:05:54,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2023-11-06 22:05:54,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2023-11-06 22:05:54,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2023-11-06 22:05:54,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2023-11-06 22:05:54,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2023-11-06 22:05:54,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2023-11-06 22:05:54,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2023-11-06 22:05:54,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2023-11-06 22:05:54,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2023-11-06 22:05:54,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2023-11-06 22:05:54,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2023-11-06 22:05:54,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2023-11-06 22:05:54,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2023-11-06 22:05:54,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2023-11-06 22:05:54,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2023-11-06 22:05:54,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2023-11-06 22:05:54,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2023-11-06 22:05:54,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2023-11-06 22:05:54,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2023-11-06 22:05:54,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2023-11-06 22:05:54,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2023-11-06 22:05:54,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2023-11-06 22:05:54,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2023-11-06 22:05:54,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2023-11-06 22:05:54,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2023-11-06 22:05:54,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2023-11-06 22:05:54,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2023-11-06 22:05:54,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2023-11-06 22:05:54,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2023-11-06 22:05:54,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2023-11-06 22:05:54,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2023-11-06 22:05:54,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2023-11-06 22:05:54,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2023-11-06 22:05:54,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2023-11-06 22:05:54,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2023-11-06 22:05:54,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2023-11-06 22:05:54,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2023-11-06 22:05:54,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2023-11-06 22:05:54,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2023-11-06 22:05:54,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2023-11-06 22:05:54,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2023-11-06 22:05:54,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2023-11-06 22:05:54,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2023-11-06 22:05:54,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2023-11-06 22:05:54,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:05:54,592 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-06 22:05:54,595 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:05:54,595 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:05:54,786 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:05:54,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:05:58,067 INFO L124 PetriNetUnfolderBase]: 220/5713 cut-off events. [2023-11-06 22:05:58,067 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:05:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5725 conditions, 5713 events. 220/5713 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 34982 event pairs, 0 based on Foata normal form. 0/5233 useless extension candidates. Maximal degree in co-relation 3744. Up to 9 conditions per place. [2023-11-06 22:05:58,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:05:58,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:05:58,286 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:05:58,286 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:05:58,287 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:05:58,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2109 places, 2186 transitions, 4388 flow [2023-11-06 22:06:01,313 INFO L124 PetriNetUnfolderBase]: 220/5713 cut-off events. [2023-11-06 22:06:01,314 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:06:01,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5725 conditions, 5713 events. 220/5713 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 34982 event pairs, 0 based on Foata normal form. 0/5233 useless extension candidates. Maximal degree in co-relation 3744. Up to 9 conditions per place. [2023-11-06 22:06:01,845 INFO L119 LiptonReduction]: Number of co-enabled transitions 1271204