./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:21,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:21,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 19:50:21,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:21,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:21,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:21,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:21,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:21,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:21,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:21,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:21,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:21,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:21,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:21,623 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:21,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:21,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:21,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:21,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:50:21,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:50:21,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:21,626 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:21,626 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:21,626 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:21,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:21,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:21,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:21,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:21,628 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-27 19:50:21,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:21,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:21,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:21,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:21,980 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:21,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 19:50:25,462 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d3290b5f0/edc67b33ed9644ae96839783673ac123/FLAG7cb147737 [2024-11-27 19:50:26,008 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:26,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 19:50:26,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d3290b5f0/edc67b33ed9644ae96839783673ac123/FLAG7cb147737 [2024-11-27 19:50:26,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d3290b5f0/edc67b33ed9644ae96839783673ac123 [2024-11-27 19:50:26,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:26,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:26,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:26,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:26,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:26,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443686d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26, skipping insertion in model container [2024-11-27 19:50:26,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:26,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:26,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:27,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:27,172 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:27,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27 WrapperNode [2024-11-27 19:50:27,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:27,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:27,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:27,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:27,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,233 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2024-11-27 19:50:27,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:27,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:27,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:27,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:27,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:50:27,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,289 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:27,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:27,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:27,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:27,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (1/1) ... [2024-11-27 19:50:27,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:27,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:27,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 19:50:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 19:50:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-27 19:50:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-27 19:50:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:27,409 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 19:50:27,615 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:27,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:28,018 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 19:50:28,019 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:28,658 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:28,662 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:50:28,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28 BoogieIcfgContainer [2024-11-27 19:50:28,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:28,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:28,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:28,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:28,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:26" (1/3) ... [2024-11-27 19:50:28,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:28, skipping insertion in model container [2024-11-27 19:50:28,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:27" (2/3) ... [2024-11-27 19:50:28,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:28, skipping insertion in model container [2024-11-27 19:50:28,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28" (3/3) ... [2024-11-27 19:50:28,682 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-27 19:50:28,701 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:28,704 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 24 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-27 19:50:28,704 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 19:50:28,815 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 19:50:28,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 27 transitions, 61 flow [2024-11-27 19:50:28,919 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-27 19:50:28,925 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:28,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 4/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-11-27 19:50:28,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 27 transitions, 61 flow [2024-11-27 19:50:28,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 25 transitions, 56 flow [2024-11-27 19:50:28,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:28,973 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@43d27d7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:28,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-27 19:50:29,002 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 19:50:29,002 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-11-27 19:50:29,002 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:29,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:29,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:29,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,014 INFO L85 PathProgramCache]: Analyzing trace with hash 84595693, now seen corresponding path program 1 times [2024-11-27 19:50:29,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444529724] [2024-11-27 19:50:29,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:29,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:29,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444529724] [2024-11-27 19:50:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444529724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:29,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:29,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:29,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76437668] [2024-11-27 19:50:29,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:29,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:29,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:29,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:29,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:29,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 19:50:29,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:29,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 19:50:29,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:29,781 INFO L124 PetriNetUnfolderBase]: 17/57 cut-off events. [2024-11-27 19:50:29,781 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:29,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 57 events. 17/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 143 event pairs, 6 based on Foata normal form. 7/63 useless extension candidates. Maximal degree in co-relation 81. Up to 30 conditions per place. [2024-11-27 19:50:29,784 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 15 selfloop transitions, 2 changer transitions 1/25 dead transitions. [2024-11-27 19:50:29,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 25 transitions, 90 flow [2024-11-27 19:50:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-11-27 19:50:29,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-27 19:50:29,808 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 56 flow. Second operand 3 states and 51 transitions. [2024-11-27 19:50:29,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 25 transitions, 90 flow [2024-11-27 19:50:29,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 19:50:29,823 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 52 flow [2024-11-27 19:50:29,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-11-27 19:50:29,833 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-27 19:50:29,835 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 52 flow [2024-11-27 19:50:29,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:29,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:29,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:29,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1753767119, now seen corresponding path program 1 times [2024-11-27 19:50:29,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:29,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525294058] [2024-11-27 19:50:29,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:29,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:30,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525294058] [2024-11-27 19:50:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525294058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:30,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493845181] [2024-11-27 19:50:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:30,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:30,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:30,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:30,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 19:50:30,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:30,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:30,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 19:50:30,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:30,244 INFO L124 PetriNetUnfolderBase]: 25/82 cut-off events. [2024-11-27 19:50:30,245 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-27 19:50:30,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 82 events. 25/82 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 223 event pairs, 9 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 38. Up to 38 conditions per place. [2024-11-27 19:50:30,249 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 17 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-11-27 19:50:30,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 112 flow [2024-11-27 19:50:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-27 19:50:30,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-27 19:50:30,255 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 52 flow. Second operand 3 states and 48 transitions. [2024-11-27 19:50:30,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 112 flow [2024-11-27 19:50:30,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:30,259 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 62 flow [2024-11-27 19:50:30,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2024-11-27 19:50:30,261 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2024-11-27 19:50:30,261 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 62 flow [2024-11-27 19:50:30,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:30,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:30,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:30,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:30,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:30,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:30,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1456695076, now seen corresponding path program 1 times [2024-11-27 19:50:30,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:30,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623939929] [2024-11-27 19:50:30,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:30,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:30,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:30,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623939929] [2024-11-27 19:50:30,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623939929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:30,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628030342] [2024-11-27 19:50:30,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:30,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:30,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:30,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:30,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:50:30,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:30,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:31,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628030342] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:31,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:31,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-27 19:50:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360250023] [2024-11-27 19:50:31,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:31,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:50:31,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:31,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:50:31,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:50:31,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:31,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 62 flow. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:31,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:31,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:31,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:31,465 INFO L124 PetriNetUnfolderBase]: 76/215 cut-off events. [2024-11-27 19:50:31,465 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-27 19:50:31,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 215 events. 76/215 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 685 event pairs, 4 based on Foata normal form. 30/244 useless extension candidates. Maximal degree in co-relation 113. Up to 61 conditions per place. [2024-11-27 19:50:31,469 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 42 selfloop transitions, 33 changer transitions 0/81 dead transitions. [2024-11-27 19:50:31,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 81 transitions, 406 flow [2024-11-27 19:50:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:50:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-27 19:50:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 233 transitions. [2024-11-27 19:50:31,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5393518518518519 [2024-11-27 19:50:31,473 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 62 flow. Second operand 16 states and 233 transitions. [2024-11-27 19:50:31,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 81 transitions, 406 flow [2024-11-27 19:50:31,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 81 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:31,477 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 334 flow [2024-11-27 19:50:31,477 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=334, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2024-11-27 19:50:31,478 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 26 predicate places. [2024-11-27 19:50:31,479 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 334 flow [2024-11-27 19:50:31,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:31,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:31,479 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:31,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:31,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-27 19:50:31,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:31,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash -325765437, now seen corresponding path program 2 times [2024-11-27 19:50:31,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085309048] [2024-11-27 19:50:31,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,760 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:31,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085309048] [2024-11-27 19:50:31,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085309048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:31,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854080688] [2024-11-27 19:50:31,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:31,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:31,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:31,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:31,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:32,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:32,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:32,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:50:32,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:32,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854080688] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:32,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-27 19:50:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080490265] [2024-11-27 19:50:32,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:32,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:50:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:32,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:50:32,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:32,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:32,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 334 flow. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:32,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:32,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:32,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:32,754 INFO L124 PetriNetUnfolderBase]: 176/507 cut-off events. [2024-11-27 19:50:32,755 INFO L125 PetriNetUnfolderBase]: For 3097/3097 co-relation queries the response was YES. [2024-11-27 19:50:32,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 507 events. 176/507 cut-off events. For 3097/3097 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2345 event pairs, 45 based on Foata normal form. 59/551 useless extension candidates. Maximal degree in co-relation 1572. Up to 122 conditions per place. [2024-11-27 19:50:32,765 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 61 selfloop transitions, 20 changer transitions 0/90 dead transitions. [2024-11-27 19:50:32,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 90 transitions, 846 flow [2024-11-27 19:50:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:50:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 19:50:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 124 transitions. [2024-11-27 19:50:32,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-11-27 19:50:32,768 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 334 flow. Second operand 8 states and 124 transitions. [2024-11-27 19:50:32,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 90 transitions, 846 flow [2024-11-27 19:50:32,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 90 transitions, 770 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-27 19:50:32,784 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 404 flow [2024-11-27 19:50:32,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=404, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-11-27 19:50:32,785 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 36 predicate places. [2024-11-27 19:50:32,785 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 404 flow [2024-11-27 19:50:32,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:32,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:32,786 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:32,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:50:32,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:32,994 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:32,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:32,995 INFO L85 PathProgramCache]: Analyzing trace with hash 208617923, now seen corresponding path program 3 times [2024-11-27 19:50:32,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:32,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813097900] [2024-11-27 19:50:32,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:50:32,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,101 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 19:50:33,103 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 19:50:33,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813097900] [2024-11-27 19:50:33,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813097900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124825291] [2024-11-27 19:50:33,368 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:50:33,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:33,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:33,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:33,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:50:33,622 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 19:50:33,622 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:33,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:50:33,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 19:50:33,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 19:50:33,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124825291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:33,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:33,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-27 19:50:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585991408] [2024-11-27 19:50:33,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:50:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:50:33,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:50:33,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:33,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 404 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:33,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:33,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:34,316 INFO L124 PetriNetUnfolderBase]: 266/767 cut-off events. [2024-11-27 19:50:34,317 INFO L125 PetriNetUnfolderBase]: For 9650/9698 co-relation queries the response was YES. [2024-11-27 19:50:34,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3633 conditions, 767 events. 266/767 cut-off events. For 9650/9698 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3986 event pairs, 16 based on Foata normal form. 56/815 useless extension candidates. Maximal degree in co-relation 3162. Up to 231 conditions per place. [2024-11-27 19:50:34,331 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 144 selfloop transitions, 36 changer transitions 0/187 dead transitions. [2024-11-27 19:50:34,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 187 transitions, 2298 flow [2024-11-27 19:50:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:50:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 19:50:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 185 transitions. [2024-11-27 19:50:34,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5709876543209876 [2024-11-27 19:50:34,334 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 404 flow. Second operand 12 states and 185 transitions. [2024-11-27 19:50:34,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 187 transitions, 2298 flow [2024-11-27 19:50:34,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 187 transitions, 2054 flow, removed 88 selfloop flow, removed 2 redundant places. [2024-11-27 19:50:34,365 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 632 flow [2024-11-27 19:50:34,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=632, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-11-27 19:50:34,366 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 52 predicate places. [2024-11-27 19:50:34,366 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 632 flow [2024-11-27 19:50:34,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:34,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:34,367 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:34,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:50:34,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:34,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:34,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:34,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1426943197, now seen corresponding path program 4 times [2024-11-27 19:50:34,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:34,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031503363] [2024-11-27 19:50:34,574 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:50:34,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:34,656 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:50:34,657 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:34,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:34,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031503363] [2024-11-27 19:50:34,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031503363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:34,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550606456] [2024-11-27 19:50:34,939 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:50:34,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:34,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:34,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:34,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:50:35,149 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:50:35,149 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:35,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:50:35,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:35,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:35,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550606456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:35,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:35,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-27 19:50:35,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958150745] [2024-11-27 19:50:35,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:35,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:50:35,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:35,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:50:35,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:50:35,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:35,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 632 flow. Second operand has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:35,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:35,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:35,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:36,237 INFO L124 PetriNetUnfolderBase]: 758/2069 cut-off events. [2024-11-27 19:50:36,237 INFO L125 PetriNetUnfolderBase]: For 18183/18257 co-relation queries the response was YES. [2024-11-27 19:50:36,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 2069 events. 758/2069 cut-off events. For 18183/18257 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 13031 event pairs, 107 based on Foata normal form. 288/2298 useless extension candidates. Maximal degree in co-relation 7868. Up to 446 conditions per place. [2024-11-27 19:50:36,266 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 215 selfloop transitions, 28 changer transitions 0/255 dead transitions. [2024-11-27 19:50:36,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 255 transitions, 3026 flow [2024-11-27 19:50:36,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:50:36,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-27 19:50:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 248 transitions. [2024-11-27 19:50:36,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-11-27 19:50:36,268 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 632 flow. Second operand 16 states and 248 transitions. [2024-11-27 19:50:36,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 255 transitions, 3026 flow [2024-11-27 19:50:36,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 255 transitions, 2936 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 19:50:36,300 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 830 flow [2024-11-27 19:50:36,300 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=830, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-11-27 19:50:36,301 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 73 predicate places. [2024-11-27 19:50:36,301 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 830 flow [2024-11-27 19:50:36,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:36,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:36,302 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:36,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:50:36,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:36,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:36,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:36,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1108519203, now seen corresponding path program 5 times [2024-11-27 19:50:36,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:36,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516111117] [2024-11-27 19:50:36,508 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:50:36,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:36,592 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-11-27 19:50:36,593 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516111117] [2024-11-27 19:50:37,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516111117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415561253] [2024-11-27 19:50:37,120 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:50:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:37,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:37,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:50:37,341 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-11-27 19:50:37,341 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:37,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 19:50:37,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:37,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 19:50:37,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415561253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:37,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:37,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2024-11-27 19:50:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286559752] [2024-11-27 19:50:37,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:37,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 19:50:37,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:38,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 19:50:38,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2024-11-27 19:50:38,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:38,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 830 flow. Second operand has 22 states, 22 states have (on average 11.454545454545455) internal successors, (252), 22 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:38,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:38,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:38,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:38,877 INFO L124 PetriNetUnfolderBase]: 1046/2837 cut-off events. [2024-11-27 19:50:38,878 INFO L125 PetriNetUnfolderBase]: For 42771/42881 co-relation queries the response was YES. [2024-11-27 19:50:38,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13778 conditions, 2837 events. 1046/2837 cut-off events. For 42771/42881 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 18816 event pairs, 131 based on Foata normal form. 270/3036 useless extension candidates. Maximal degree in co-relation 12513. Up to 632 conditions per place. [2024-11-27 19:50:38,996 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 299 selfloop transitions, 34 changer transitions 0/345 dead transitions. [2024-11-27 19:50:38,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 345 transitions, 4188 flow [2024-11-27 19:50:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 19:50:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 19:50:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 336 transitions. [2024-11-27 19:50:38,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-11-27 19:50:38,998 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 830 flow. Second operand 22 states and 336 transitions. [2024-11-27 19:50:38,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 345 transitions, 4188 flow [2024-11-27 19:50:39,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 345 transitions, 4158 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 19:50:39,055 INFO L231 Difference]: Finished difference. Result has 121 places, 90 transitions, 1020 flow [2024-11-27 19:50:39,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1020, PETRI_PLACES=121, PETRI_TRANSITIONS=90} [2024-11-27 19:50:39,056 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 96 predicate places. [2024-11-27 19:50:39,056 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 90 transitions, 1020 flow [2024-11-27 19:50:39,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.454545454545455) internal successors, (252), 22 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:39,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:39,057 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:39,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:50:39,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:39,261 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:39,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash -684097869, now seen corresponding path program 6 times [2024-11-27 19:50:39,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:39,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732540817] [2024-11-27 19:50:39,263 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 19:50:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:39,336 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-27 19:50:39,336 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 19:50:39,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732540817] [2024-11-27 19:50:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732540817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301872271] [2024-11-27 19:50:39,645 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 19:50:39,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:39,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:39,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:39,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:50:39,857 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-27 19:50:39,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:39,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:50:39,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 19:50:39,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 19:50:40,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301872271] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:40,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:40,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-27 19:50:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86400038] [2024-11-27 19:50:40,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:40,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 19:50:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:40,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 19:50:40,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:50:40,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:40,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 90 transitions, 1020 flow. Second operand has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:40,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:40,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:40,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:41,647 INFO L124 PetriNetUnfolderBase]: 1388/3809 cut-off events. [2024-11-27 19:50:41,647 INFO L125 PetriNetUnfolderBase]: For 99557/99793 co-relation queries the response was YES. [2024-11-27 19:50:41,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23200 conditions, 3809 events. 1388/3809 cut-off events. For 99557/99793 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 27509 event pairs, 44 based on Foata normal form. 232/4020 useless extension candidates. Maximal degree in co-relation 21859. Up to 1327 conditions per place. [2024-11-27 19:50:41,703 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 588 selfloop transitions, 66 changer transitions 0/663 dead transitions. [2024-11-27 19:50:41,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 663 transitions, 12386 flow [2024-11-27 19:50:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 19:50:41,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 19:50:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 339 transitions. [2024-11-27 19:50:41,706 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5707070707070707 [2024-11-27 19:50:41,706 INFO L175 Difference]: Start difference. First operand has 121 places, 90 transitions, 1020 flow. Second operand 22 states and 339 transitions. [2024-11-27 19:50:41,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 663 transitions, 12386 flow [2024-11-27 19:50:41,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 663 transitions, 11760 flow, removed 0 selfloop flow, removed 13 redundant places. [2024-11-27 19:50:41,829 INFO L231 Difference]: Finished difference. Result has 140 places, 123 transitions, 1534 flow [2024-11-27 19:50:41,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1534, PETRI_PLACES=140, PETRI_TRANSITIONS=123} [2024-11-27 19:50:41,831 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 115 predicate places. [2024-11-27 19:50:41,831 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 123 transitions, 1534 flow [2024-11-27 19:50:41,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:41,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:41,831 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:41,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:50:42,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:42,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:42,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:42,033 INFO L85 PathProgramCache]: Analyzing trace with hash -825937597, now seen corresponding path program 7 times [2024-11-27 19:50:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419046085] [2024-11-27 19:50:42,033 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 19:50:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:50:42,100 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:50:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:50:42,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 19:50:42,212 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 19:50:42,213 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-27 19:50:42,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-11-27 19:50:42,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-27 19:50:42,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:50:42,216 INFO L422 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2024-11-27 19:50:42,365 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 19:50:42,369 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:50:42,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:50:42 BasicIcfg [2024-11-27 19:50:42,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:50:42,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:50:42,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:50:42,383 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:50:42,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28" (3/4) ... [2024-11-27 19:50:42,386 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:50:42,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:50:42,390 INFO L158 Benchmark]: Toolchain (without parser) took 16307.76ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.1MB in the beginning and 160.9MB in the end (delta: -68.8MB). Peak memory consumption was 170.3MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,390 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:50:42,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1088.33ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 54.5MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.70ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 52.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,392 INFO L158 Benchmark]: Boogie Preprocessor took 77.43ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:50:42,393 INFO L158 Benchmark]: RCFGBuilder took 1350.27ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 45.3MB in the end (delta: 4.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,393 INFO L158 Benchmark]: TraceAbstraction took 13716.24ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 44.7MB in the beginning and 161.0MB in the end (delta: -116.3MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,393 INFO L158 Benchmark]: Witness Printer took 6.79ms. Allocated memory is still 352.3MB. Free memory was 161.0MB in the beginning and 160.9MB in the end (delta: 26.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:50:42,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1088.33ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 54.5MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.70ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 52.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.43ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1350.27ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 45.3MB in the end (delta: 4.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13716.24ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 44.7MB in the beginning and 161.0MB in the end (delta: -116.3MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. * Witness Printer took 6.79ms. Allocated memory is still 352.3MB. Free memory was 161.0MB in the beginning and 160.9MB in the end (delta: 26.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=0, myglobal=1, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=1, myglobal=1, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=1, myglobal=1, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=1, myglobal=2, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=2, myglobal=2, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=2, myglobal=2, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=2, myglobal=3, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=3, myglobal=3, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=3, myglobal=3, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=3, myglobal=4, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=4, myglobal=4, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=4, myglobal=4, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=4, myglobal=5, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=5, myglobal=5, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=5, myglobal=5, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=5, myglobal=6, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=6, myglobal=6, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=6, myglobal=6, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=6, myglobal=7, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=7, myglobal=7, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=7, myglobal=7, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=7, myglobal=8, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=8, myglobal=8, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=8, myglobal=8, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=8, myglobal=9, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=9, myglobal=9, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=9, myglobal=9, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=9, myglobal=10, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=10, myglobal=10, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=10, myglobal=10, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=10, myglobal=11, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=11, myglobal=11, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=11, myglobal=11, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=11, myglobal=12, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=12, myglobal=12, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=12, myglobal=12, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=12, myglobal=13, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=13, myglobal=13, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=13, myglobal=13, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=13, myglobal=14, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=14, myglobal=14, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=14, myglobal=14, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=14, myglobal=15, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=15, myglobal=15, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=15, myglobal=15, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=15, myglobal=16, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=16, myglobal=16, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=16, myglobal=16, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=16, myglobal=17, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=17, myglobal=17, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=17, myglobal=17, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=17, myglobal=18, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=18, myglobal=18, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=18, myglobal=18, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=18, myglobal=19, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=19, myglobal=19, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=19, myglobal=19, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=19, myglobal=20, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=20, myglobal=20, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=20] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=20] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=20, myglobal=20] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=21, myglobal=21] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=22, myglobal=22] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=23, myglobal=23] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=24, myglobal=24] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=25, myglobal=25] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=26, myglobal=26] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=27, myglobal=27] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=28, myglobal=28] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=29, myglobal=29] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=30, myglobal=30] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=31, myglobal=31] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=32, myglobal=32] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=33, myglobal=33] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=34, myglobal=34] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=35, myglobal=35] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=36, myglobal=36] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=37, myglobal=37] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=38, myglobal=38] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=39, myglobal=39] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=40, myglobal=40] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread=-1] [L1325] COND FALSE 1 !(i<20) [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) [L13] CALL 0 reach_error() [L12] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L12] 0 __assert_fail ("0", "pthread-demo-datarace-2.c", 25, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=40, myglobal=40] - UnprovableResult [Line: 1338]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.4s, OverallIterations: 9, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 613 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 599 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 820 IncrementalHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 820 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 881 GetRequests, 780 SyntacticMatches, 12 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1534occurred in iteration=8, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 95 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 2883 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1312 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 3439/5278 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 19:50:42,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:45,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:45,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-27 19:50:45,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:45,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:45,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:45,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:45,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:45,683 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:45,683 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:45,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:45,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:45,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:45,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:45,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:45,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:45,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:45,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:45,686 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:45,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:45,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:45,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:45,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:45,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:45,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:45,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:45,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:45,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 19:50:45,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:45,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:45,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:45,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:45,690 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-27 19:50:46,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:46,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:46,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:46,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:46,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:46,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 19:50:49,346 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d176e3bef/07b546e3f4be491abc8110c4f7a836ca/FLAGb64615510 [2024-11-27 19:50:49,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:49,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 19:50:49,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d176e3bef/07b546e3f4be491abc8110c4f7a836ca/FLAGb64615510 [2024-11-27 19:50:49,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/data/d176e3bef/07b546e3f4be491abc8110c4f7a836ca [2024-11-27 19:50:49,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:49,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:49,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:49,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:49,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:49,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:49" (1/1) ... [2024-11-27 19:50:49,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e526456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:49, skipping insertion in model container [2024-11-27 19:50:49,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:49" (1/1) ... [2024-11-27 19:50:49,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:50,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:50,615 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:50,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:50,847 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:50,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50 WrapperNode [2024-11-27 19:50:50,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:50,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:50,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:50,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:50,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,904 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2024-11-27 19:50:50,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:50,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:50,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:50,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:50,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,933 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:50:50,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,941 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:50,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:50,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:50,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:50,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (1/1) ... [2024-11-27 19:50:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:51,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:51,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 19:50:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 19:50:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 19:50:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-27 19:50:51,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-27 19:50:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:51,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:51,041 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 19:50:51,229 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:51,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:51,492 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 19:50:51,492 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:52,188 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:52,190 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:50:52,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:52 BoogieIcfgContainer [2024-11-27 19:50:52,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:52,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:52,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:52,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:52,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:49" (1/3) ... [2024-11-27 19:50:52,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c242989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:52, skipping insertion in model container [2024-11-27 19:50:52,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:50" (2/3) ... [2024-11-27 19:50:52,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c242989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:52, skipping insertion in model container [2024-11-27 19:50:52,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:52" (3/3) ... [2024-11-27 19:50:52,229 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-27 19:50:52,246 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:52,248 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 24 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-27 19:50:52,249 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 19:50:52,302 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 19:50:52,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 27 transitions, 61 flow [2024-11-27 19:50:52,395 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-27 19:50:52,400 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:52,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 4/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-11-27 19:50:52,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 27 transitions, 61 flow [2024-11-27 19:50:52,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 25 transitions, 56 flow [2024-11-27 19:50:52,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:52,442 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@61a66c42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:52,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-27 19:50:52,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 19:50:52,457 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-11-27 19:50:52,457 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:52,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:52,458 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:52,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:52,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:52,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2097519279, now seen corresponding path program 1 times [2024-11-27 19:50:52,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059558475] [2024-11-27 19:50:52,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:52,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:52,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:52,489 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:52,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:52,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:50:52,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:52,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:52,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:52,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059558475] [2024-11-27 19:50:52,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059558475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:52,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:52,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599459503] [2024-11-27 19:50:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:50:52,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:52,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:50:52,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:50:52,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 19:50:52,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:52,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:52,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 19:50:52,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:52,838 INFO L124 PetriNetUnfolderBase]: 13/41 cut-off events. [2024-11-27 19:50:52,839 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:50:52,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 41 events. 13/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 6 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 57. Up to 30 conditions per place. [2024-11-27 19:50:52,863 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2024-11-27 19:50:52,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 70 flow [2024-11-27 19:50:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:50:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-27 19:50:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2024-11-27 19:50:52,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2024-11-27 19:50:52,886 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 56 flow. Second operand 2 states and 35 transitions. [2024-11-27 19:50:52,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 70 flow [2024-11-27 19:50:52,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 19:50:52,894 INFO L231 Difference]: Finished difference. Result has 21 places, 19 transitions, 40 flow [2024-11-27 19:50:52,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=19} [2024-11-27 19:50:52,903 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -4 predicate places. [2024-11-27 19:50:52,904 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 19 transitions, 40 flow [2024-11-27 19:50:52,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:52,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:52,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:52,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:53,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:53,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:53,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1163743203, now seen corresponding path program 1 times [2024-11-27 19:50:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:53,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693264333] [2024-11-27 19:50:53,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:53,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:53,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:53,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:53,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:53,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:50:53,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:53,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:53,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693264333] [2024-11-27 19:50:53,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693264333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:53,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:53,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:53,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265590238] [2024-11-27 19:50:53,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:53,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:53,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:53,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:53,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 19:50:53,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:53,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:53,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 19:50:53,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:53,462 INFO L124 PetriNetUnfolderBase]: 19/61 cut-off events. [2024-11-27 19:50:53,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 19:50:53,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 61 events. 19/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 131 event pairs, 6 based on Foata normal form. 3/60 useless extension candidates. Maximal degree in co-relation 103. Up to 30 conditions per place. [2024-11-27 19:50:53,463 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 15 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2024-11-27 19:50:53,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 84 flow [2024-11-27 19:50:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:53,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-27 19:50:53,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-27 19:50:53,465 INFO L175 Difference]: Start difference. First operand has 21 places, 19 transitions, 40 flow. Second operand 3 states and 48 transitions. [2024-11-27 19:50:53,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 84 flow [2024-11-27 19:50:53,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 19:50:53,468 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 52 flow [2024-11-27 19:50:53,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-11-27 19:50:53,469 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-27 19:50:53,470 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 52 flow [2024-11-27 19:50:53,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:53,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:53,470 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:53,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:50:53,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:53,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:53,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1361196014, now seen corresponding path program 1 times [2024-11-27 19:50:53,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:53,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24564978] [2024-11-27 19:50:53,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:53,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:53,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:53,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:53,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:50:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:53,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:50:53,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:53,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:53,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24564978] [2024-11-27 19:50:53,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24564978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:53,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:53,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:53,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589244719] [2024-11-27 19:50:53,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:53,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:53,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:53,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:53,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:53,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-11-27 19:50:53,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:53,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:53,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-11-27 19:50:53,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:53,990 INFO L124 PetriNetUnfolderBase]: 25/83 cut-off events. [2024-11-27 19:50:53,990 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-27 19:50:53,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 83 events. 25/83 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 237 event pairs, 10 based on Foata normal form. 6/88 useless extension candidates. Maximal degree in co-relation 157. Up to 42 conditions per place. [2024-11-27 19:50:53,994 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 17 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-11-27 19:50:53,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 26 transitions, 112 flow [2024-11-27 19:50:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-27 19:50:53,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-27 19:50:53,995 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 52 flow. Second operand 3 states and 48 transitions. [2024-11-27 19:50:53,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 26 transitions, 112 flow [2024-11-27 19:50:53,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:53,998 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 62 flow [2024-11-27 19:50:53,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2024-11-27 19:50:54,000 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-27 19:50:54,001 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 62 flow [2024-11-27 19:50:54,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:54,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:54,002 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:54,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:50:54,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:54,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:54,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1147540250, now seen corresponding path program 1 times [2024-11-27 19:50:54,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:54,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863023663] [2024-11-27 19:50:54,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:54,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:54,208 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:54,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:50:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:54,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:50:54,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:54,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:50:54,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863023663] [2024-11-27 19:50:54,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863023663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:54,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:50:54,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-27 19:50:54,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77330279] [2024-11-27 19:50:54,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:54,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:54,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:54,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:54,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:54,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:54,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 62 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:54,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:54,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:54,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:54,726 INFO L124 PetriNetUnfolderBase]: 61/163 cut-off events. [2024-11-27 19:50:54,726 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-27 19:50:54,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 163 events. 61/163 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 419 event pairs, 7 based on Foata normal form. 12/173 useless extension candidates. Maximal degree in co-relation 388. Up to 46 conditions per place. [2024-11-27 19:50:54,728 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 34 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2024-11-27 19:50:54,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 46 transitions, 236 flow [2024-11-27 19:50:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-11-27 19:50:54,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-11-27 19:50:54,730 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 62 flow. Second operand 6 states and 92 transitions. [2024-11-27 19:50:54,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 46 transitions, 236 flow [2024-11-27 19:50:54,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 46 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:54,732 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 100 flow [2024-11-27 19:50:54,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2024-11-27 19:50:54,733 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-27 19:50:54,733 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 100 flow [2024-11-27 19:50:54,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:54,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:54,734 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:54,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:50:54,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:54,935 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:54,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:54,935 INFO L85 PathProgramCache]: Analyzing trace with hash 733222511, now seen corresponding path program 2 times [2024-11-27 19:50:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806675850] [2024-11-27 19:50:54,936 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:54,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:54,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:54,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:54,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:50:55,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:55,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:55,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:50:55,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:55,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:55,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:55,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806675850] [2024-11-27 19:50:55,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806675850] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:55,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:50:55,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-27 19:50:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663829785] [2024-11-27 19:50:55,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:55,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:55,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:55,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:55,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:55,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:55,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:55,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:55,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:55,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:55,509 INFO L124 PetriNetUnfolderBase]: 113/308 cut-off events. [2024-11-27 19:50:55,509 INFO L125 PetriNetUnfolderBase]: For 451/451 co-relation queries the response was YES. [2024-11-27 19:50:55,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 308 events. 113/308 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1338 event pairs, 20 based on Foata normal form. 33/333 useless extension candidates. Maximal degree in co-relation 821. Up to 58 conditions per place. [2024-11-27 19:50:55,518 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 45 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-11-27 19:50:55,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 58 transitions, 418 flow [2024-11-27 19:50:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:55,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2024-11-27 19:50:55,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-11-27 19:50:55,521 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 100 flow. Second operand 6 states and 93 transitions. [2024-11-27 19:50:55,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 58 transitions, 418 flow [2024-11-27 19:50:55,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 58 transitions, 378 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:55,529 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 132 flow [2024-11-27 19:50:55,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2024-11-27 19:50:55,530 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 16 predicate places. [2024-11-27 19:50:55,531 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 132 flow [2024-11-27 19:50:55,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:55,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:55,532 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:55,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:50:55,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:55,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:55,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1771376389, now seen corresponding path program 3 times [2024-11-27 19:50:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:55,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835982750] [2024-11-27 19:50:55,739 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:50:55,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:55,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:55,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:55,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:50:55,980 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 19:50:55,981 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:55,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:50:55,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:56,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:50:56,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:56,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835982750] [2024-11-27 19:50:56,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835982750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:56,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:50:56,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 19:50:56,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696309114] [2024-11-27 19:50:56,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:56,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:50:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:56,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:50:56,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:56,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:50:56,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 132 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:56,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:56,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:50:56,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:56,913 INFO L124 PetriNetUnfolderBase]: 234/632 cut-off events. [2024-11-27 19:50:56,913 INFO L125 PetriNetUnfolderBase]: For 1401/1401 co-relation queries the response was YES. [2024-11-27 19:50:56,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 632 events. 234/632 cut-off events. For 1401/1401 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3215 event pairs, 16 based on Foata normal form. 66/686 useless extension candidates. Maximal degree in co-relation 2054. Up to 132 conditions per place. [2024-11-27 19:50:56,921 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 93 selfloop transitions, 12 changer transitions 0/112 dead transitions. [2024-11-27 19:50:56,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 112 transitions, 858 flow [2024-11-27 19:50:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:50:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 19:50:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2024-11-27 19:50:56,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-11-27 19:50:56,924 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 132 flow. Second operand 12 states and 186 transitions. [2024-11-27 19:50:56,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 112 transitions, 858 flow [2024-11-27 19:50:56,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 112 transitions, 838 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:56,932 INFO L231 Difference]: Finished difference. Result has 58 places, 34 transitions, 220 flow [2024-11-27 19:50:56,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=220, PETRI_PLACES=58, PETRI_TRANSITIONS=34} [2024-11-27 19:50:56,933 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 33 predicate places. [2024-11-27 19:50:56,934 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 34 transitions, 220 flow [2024-11-27 19:50:56,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:56,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:56,934 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:56,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:50:57,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:57,139 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:50:57,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash 134915431, now seen corresponding path program 4 times [2024-11-27 19:50:57,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:50:57,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123161766] [2024-11-27 19:50:57,140 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:50:57,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:57,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:57,142 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:57,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:50:57,316 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:50:57,316 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:57,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 19:50:57,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-27 19:50:57,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:58,229 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-27 19:50:58,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:50:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123161766] [2024-11-27 19:50:58,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123161766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:58,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:50:58,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 26 [2024-11-27 19:50:58,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303113585] [2024-11-27 19:50:58,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:58,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 19:50:58,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:50:58,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 19:50:58,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:50:58,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-27 19:50:58,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 34 transitions, 220 flow. Second operand has 27 states, 27 states have (on average 8.0) internal successors, (216), 27 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:58,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:58,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-27 19:50:58,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:07,401 INFO L124 PetriNetUnfolderBase]: 8562/20556 cut-off events. [2024-11-27 19:51:07,401 INFO L125 PetriNetUnfolderBase]: For 58359/58359 co-relation queries the response was YES. [2024-11-27 19:51:07,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76064 conditions, 20556 events. 8562/20556 cut-off events. For 58359/58359 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 204169 event pairs, 200 based on Foata normal form. 21/20577 useless extension candidates. Maximal degree in co-relation 76044. Up to 4198 conditions per place. [2024-11-27 19:51:07,590 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 949 selfloop transitions, 285 changer transitions 42/1283 dead transitions. [2024-11-27 19:51:07,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1283 transitions, 12289 flow [2024-11-27 19:51:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-27 19:51:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2024-11-27 19:51:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 1398 transitions. [2024-11-27 19:51:07,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43148148148148147 [2024-11-27 19:51:07,599 INFO L175 Difference]: Start difference. First operand has 58 places, 34 transitions, 220 flow. Second operand 120 states and 1398 transitions. [2024-11-27 19:51:07,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1283 transitions, 12289 flow [2024-11-27 19:51:08,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 1283 transitions, 12066 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 19:51:08,059 INFO L231 Difference]: Finished difference. Result has 228 places, 347 transitions, 1887 flow [2024-11-27 19:51:08,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=120, PETRI_FLOW=1887, PETRI_PLACES=228, PETRI_TRANSITIONS=347} [2024-11-27 19:51:08,060 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 203 predicate places. [2024-11-27 19:51:08,060 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 347 transitions, 1887 flow [2024-11-27 19:51:08,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.0) internal successors, (216), 27 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:08,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:08,061 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:08,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 19:51:08,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:08,262 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:51:08,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash -99497417, now seen corresponding path program 5 times [2024-11-27 19:51:08,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:51:08,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769391606] [2024-11-27 19:51:08,263 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:51:08,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:08,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:08,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:08,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:51:08,444 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 19:51:08,444 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:08,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:51:08,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-27 19:51:08,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-27 19:51:08,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:51:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769391606] [2024-11-27 19:51:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769391606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:08,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:51:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 19:51:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4027274] [2024-11-27 19:51:08,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:08,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:51:08,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:08,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:08,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-27 19:51:08,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 347 transitions, 1887 flow. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:08,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:08,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-27 19:51:08,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:14,064 INFO L124 PetriNetUnfolderBase]: 10836/26964 cut-off events. [2024-11-27 19:51:14,065 INFO L125 PetriNetUnfolderBase]: For 143222/143384 co-relation queries the response was YES. [2024-11-27 19:51:14,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114077 conditions, 26964 events. 10836/26964 cut-off events. For 143222/143384 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 285410 event pairs, 476 based on Foata normal form. 995/27452 useless extension candidates. Maximal degree in co-relation 114002. Up to 6675 conditions per place. [2024-11-27 19:51:14,417 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 433 selfloop transitions, 24 changer transitions 0/691 dead transitions. [2024-11-27 19:51:14,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 691 transitions, 5118 flow [2024-11-27 19:51:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 19:51:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 185 transitions. [2024-11-27 19:51:14,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5709876543209876 [2024-11-27 19:51:14,419 INFO L175 Difference]: Start difference. First operand has 228 places, 347 transitions, 1887 flow. Second operand 12 states and 185 transitions. [2024-11-27 19:51:14,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 691 transitions, 5118 flow [2024-11-27 19:51:15,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 691 transitions, 4637 flow, removed 42 selfloop flow, removed 42 redundant places. [2024-11-27 19:51:15,426 INFO L231 Difference]: Finished difference. Result has 183 places, 354 transitions, 1745 flow [2024-11-27 19:51:15,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1623, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1745, PETRI_PLACES=183, PETRI_TRANSITIONS=354} [2024-11-27 19:51:15,427 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 158 predicate places. [2024-11-27 19:51:15,427 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 354 transitions, 1745 flow [2024-11-27 19:51:15,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:15,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:15,428 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:15,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:51:15,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:15,628 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 19:51:15,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:15,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1264932185, now seen corresponding path program 6 times [2024-11-27 19:51:15,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:51:15,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917529136] [2024-11-27 19:51:15,630 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 19:51:15,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:15,634 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:15,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d1638f5-544a-4af5-adaa-b22ae5c1c7ce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 19:51:15,876 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-27 19:51:15,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:15,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 19:51:15,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:16,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:18,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:51:18,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917529136] [2024-11-27 19:51:18,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917529136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:18,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:51:18,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 65 [2024-11-27 19:51:18,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628018018] [2024-11-27 19:51:18,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:18,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-27 19:51:18,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:51:18,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-27 19:51:18,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=3639, Unknown=0, NotChecked=0, Total=4290 [2024-11-27 19:51:18,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-27 19:51:18,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 354 transitions, 1745 flow. Second operand has 66 states, 66 states have (on average 8.090909090909092) internal successors, (534), 66 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:18,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:18,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-27 19:51:18,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:55:14,981 INFO L124 PetriNetUnfolderBase]: 96555/224385 cut-off events. [2024-11-27 19:55:14,981 INFO L125 PetriNetUnfolderBase]: For 1414895/1414897 co-relation queries the response was YES.